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| Idaho State Senate | |
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| General Information | |
| Party control: | Republican |
| Session start: | January 6, 2025 |
| Session end: | April 4, 2025 |
| Term length: | 2 years |
| Term limits: | None |
| Redistricting: | Commission |
| Salary: | $16,684/year + per diem |
| Members | |
| Total: | 35 |
| Democrats: | 6 |
| Republicans: | 29 |
| Other: | 0 |
| Vacancies: | 0 |
| Leadership | |
| President: | Scott Bedke (R) |
| Maj. Leader: | Lori Den Hartog (R) |
| Min. Leader: | Melissa Wintrow (D) |
| Elections | |
| Last election: | November 5, 2024 |
| Next election: | November 3, 2026 |
The Idaho State Senate is the upper chamber of the Idaho State Legislature. Alongside the Idaho House of Representatives, it forms the legislative branch of the Idaho state government and works alongside the governor of Idaho to create laws and establish a state budget. Legislative authority and responsibilities of the Idaho State Senate include passing bills on public policy matters, setting levels for state spending, raising and lowering taxes, and voting to uphold or override gubernatorial vetoes.
The Idaho State Senate meets in the state capitol building in Boise, Idaho.
Idaho has a Republican trifecta. The Republican Party controls the office of governor and both chambers of the state legislature. |
This page contains the following information on the Idaho State Senate.
The table below shows the partisan breakdown of the Idaho State Senate as of April 2025:
| Party | As of April 2025 | |
|---|---|---|
| Democratic Party | 6 | |
| Republican Party | 29 | |
| Other | 0 | |
| Vacancies | 0 | |
| Total | 35 | |
The lieutenant governor serves as president of the Senate. The president pro tempore, who is elected by Senate caucus, presides over the daily session when the lieutenant governor isn't present and is also the chief leadership position in the majority party.[1]
| State legislative salaries, 2024[2] | |
|---|---|
| Salary | Per diem |
| $19,913/year | For legislators residing within 50 miles of the capitol: $74/day. For legislators residing more than 50 miles from the capitol: $221/day. |
Idaho legislators assume office on the first day in December following the general election.[3]
Article III, Section 6 of the Idaho Constitution states: "No person shall be a senator or representative who, at the time of his election, is not a citizen of the United States, and an elector of this state, nor anyone who has not been for one year next preceding his election an elector of the county or district whence he may be chosen."[4]
Republicans won control of the Idaho State Senate in 1992. In 2024, they won a 29-6 majority.
The table below shows the partisan history of the Idaho Senate following every general election from 1992 to 2024. All data from 2006 or earlier comes from Michael Dubin's Party Affiliations in the State Legislatures (McFarland Press, 2007). Data after 2006 was compiled by Ballotpedia staff.
Idaho State Senate election results: 1992-2024
| Year | '92 | '94 | '96 | '98 | '00 | '02 | '04 | '06 | '08 | '10 | '12 | '14 | '16 | '18 | '20 | '22 | '24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Democrats | 12 | 8 | 5 | 4 | 3 | 7 | 7 | 7 | 7 | 7 | 6 | 7 | 6 | 7 | 7 | 7 | 6 |
| Republicans | 23 | 27 | 30 | 31 | 32 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 28 | 28 | 28 | 29 |
A state government trifecta is a term that describes single-party government, when one political party holds the governor's office and has majorities in both chambers of the legislature in a state government. Between 1992 and 2023, Idaho was under the following types of trifecta control:
Idaho Party Control: 1992-2025
No Democratic trifectas • Thirty one years of Republican trifectas
Scroll left and right on the table below to view more years.
| Year | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Governor | D | D | D | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
| Senate | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
| House | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
Idaho state senators serve two-year terms, with all seats up for election every two years. Idaho holds elections for its legislature in even years.
Elections for the Idaho State Senate will take place in 2026. The general election is on November 3, 2026.
Elections for the Idaho State Senate took place in 2024. The general election was on November 5, 2024. The primary was May 21, 2024. The filing deadline was March 15, 2024.
In the 2024 elections, the Republicans in the Idaho State Senate increased their majority to 29-6.
| Idaho State Senate | |||
|---|---|---|---|
| Party | As of November 5, 2024 | After November 6, 2024 | |
| Democratic Party | 7 | 6 | |
| Republican Party | 28 | 29 | |
| Total | 35 | 35 | |
Elections for the Idaho State Senate took place in 2022. The general election was on November 8, 2022. A primary was scheduled for May 17, 2022. The filing deadline was March 11, 2022.
In the 2022 elections, the Republicans in the Idaho State Senate retained their 28-7 majority.
| Idaho State Senate | |||
|---|---|---|---|
| Party | As of November 8, 2022 | After November 9, 2022 | |
| Democratic Party | 7 | 7 | |
| Republican Party | 28 | 28 | |
| Total | 35 | 35 | |
Elections for the office of Idaho State Senate took place in 2020. The general election was held on November 3, 2020. A primary was scheduled for June 2, 2020. The filing deadline was March 13, 2020.
On March 30, 2020, Governor Brad Little (R) and Secretary of State Lawerence Denney (R) announced that Idaho's primary election would be conducted by mail. On March 24, 2020, the secretary of state announced the implementation of online absentee ballot application process, which can be accessed here. The primary date effectively changed from May 19, 2020, to June 2, 2020—the day on which ballots were due.[5]
In the 2020 elections, the Republicans in the Idaho State Senate retained their 28-7 majority.
| Idaho State Senate | |||
|---|---|---|---|
| Party | As of November 3, 2020 | After November 4, 2020 | |
| Democratic Party | 7 | 7 | |
| Republican Party | 28 | 28 | |
| Total | 35 | 35 | |
Elections for the Idaho State Senate took place in 2018. A semi-closed primary election took place on May 15, 2018. The general election was held on November 6, 2018. The candidate filing deadline was March 9, 2018.[6]
In the 2018 elections, the Republican majority in the Idaho State Senate was reduced from 29-6 to 28-7.
| Idaho State Senate | |||
|---|---|---|---|
| Party | As of November 6, 2018 | After November 7, 2018 | |
| Democratic Party | 6 | 7 | |
| Republican Party | 29 | 28 | |
| Total | 35 | 35 | |
Elections for the Idaho State Senate were held in 2016. The primary election took place on May 17, 2016, and the general election was held on November 8, 2016. The candidate filing deadline was March 11, 2016. All 35 seats in the Idaho State Senate were up for election in 2016.
Heading into the election, Republicans held a 28-7 majority. Republicans gained one seat in the election, giving them a 29-6 majority.
| Idaho State Senate | |||
|---|---|---|---|
| Party | As of November 7, 2016 | After November 8, 2016 | |
| Democratic Party | 7 | 6 | |
| Republican Party | 28 | 29 | |
| Total | 35 | 35 | |
| Click [show] to see election information dating back to 2000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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2014[edit]
Elections for the Idaho State Senate took place in 2014. A primary election took place on May 20, 2014. The general election was held on November 4, 2014. The signature filing deadline for candidates wishing to run in this election was March 14, 2014. All 35 Senate seats were up for election in 2014. Heading into the election, Republicans held a 28-7 majority. No partisan change occurred in the election.
2012[edit]
Elections for the office of Idaho State Senate took place in 2012. The primary election was held on May 15, 2012, and the general election was held on November 6, 2012. The candidate filing deadline was March 9, 2012. All 35 Senate seats were up for election in 2012. Heading into the election, Republicans held a 28-7 majority. Republicans gained one seat in the election, giving them a 29-6 majority.
2010[edit]
Elections for the office of Idaho State Senate took place in 2010. The primary election was held on May 25, 2010, and the general election was held on November 2, 2010. The candidate filing deadline was March 19, 2010. All 35 Senate seats were up for election in 2010. Heading into the election, Republicans held a 28-7 majority. No partisan change occurred in the election.
2008[edit]
Elections for the office of Idaho State Senate consisted of a primary election on May 27, 2008, and a general election on November 4, 2008. All 35 Senate seats were up for election in 2008. During the 2008 election, the total value of contributions to Senate candidates was $1,661,840. The top 10 contributors were:[8]
2006[edit]
Elections for the office of Idaho State Senate consisted of a primary election on May 23, 2006, and a general election on November 7, 2006. All 35 Senate seats were up for election in 2006. During the 2006 election, the total value of contributions to Senate candidates was $1,199,736. The top 10 contributors were:[9]
2004[edit]
Elections for the office of Idaho State Senate consisted of a primary election on May 25, 2004, and a general election on November 2, 2004. All 35 Senate seats were up for election in 2004. During the 2004 election, the total value of contributions to Senate candidates was $1,315,599. The top 10 contributors were:[10]
2002[edit]
Elections for the office of Idaho State Senate consisted of a primary election on May 28, 2002, and a general election on November 5, 2002. All 35 Senate seats were up for election in 2002. During the 2002 election, the total value of contributions to Senate candidates was $1,287,803. The top 10 contributors were:[11]
2000[edit]
Elections for the office of Idaho State Senate consisted of a primary election on May 23, 2000, and a general election on November 7, 2000. All 35 Senate seats were up for election in 2000. During the 2000 election, the total value of contributions to Senate candidates was $628,054. The top 10 contributors were:[12]
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If there is a vacancy in the Idaho State Legislature, the governor is responsible for appointing a replacement.
The political party committee that last held the vacant seat has 15 days after the vacancy occurs to submit a list of three recommended candidates to the governor. The governor makes the selection based on the recommendations.
If any party committee fails to submit a list of recommended candidates after the 15-day deadline, the governor has five days to appoint a person from the political party that last held the seat. The person appointed to the seat serves for the remainder of the unfilled term.[13]
See sources: Idaho Code §59-904A
The state of Idaho has 35 legislative districts. Senators are elected from the same legislative districts as members of the Idaho State House. In each district, one senator and two representatives are elected.
Use the interactive map below to find your district.
In 37 states, legislatures are primarily responsible for drawing congressional district lines. Seven states have only one congressional district each, rendering congressional redistricting unnecessary. Four states employ independent commissions to draw the district maps. In two states, politician commissions draw congressional district lines.
State legislative district lines are primarily the province of the state legislatures themselves in 37 states. In seven states, politician commissions draw state legislative district lines. In the remaining six states, independent commissions draw the lines.[14]
In Idaho, an independent commission is responsible for drawing both congressional and state legislative district lines. The commission is composed of six members.[15]
According to the Idaho Constitution, no member may be an elected or appointed official while serving on the commission. The state constitution further requires that the commission produce draft congressional and state legislative maps within 90 days of the commission's formation. There is no explicit deadline for final plans.[15]
The state constitution requires that state legislative districts "be contiguous, and that counties be preserved intact where possible." State statutes require that both congressional and state legislative districts meet the following criteria:[15]
On November 12, 2021, the Idaho Independent Redistricting Commission formally submitted its final legislative map to the secretary of state. On November 10, 2021, the commission voted 6-0 in favor of the final legislative map.[16] The commission had earlier voted in favor of the map on November 5, 2021, but chose to recast their votes on November 10, 2021, due to concerns regarding Idaho's open meetings laws.[16][17][18] Idaho has 35 legislative districts, each of which elects one senator and two representatives.
Below is the state Senate map in effect before and after the 2020 redistricting cycle.
Click a district to compare boundaries.
Click a district to compare boundaries.
Idaho received its local census data on March 20, 2011. These tables show the change in population in the five largest cities and counties in Idaho from 2000-2010:[19]
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Each party on Idaho’s bipartisan redistricting commission released its legislative redistricting proposals in August of 2011. On August 17, 2011, the Idaho Commission on Reapportionment adjourned until August 30, citing progress on the maps. The commission did not agree to a new map of the state's legislative districts by the 5 p.m. deadline on September 6, 2011, and a reformed Reapportionment Commission was created. On October 14, 2011, the reformed commission unanimously adopted a plan for the new legislative districts, formally known as L-87.
The legislation tracker below displays all legislation that the Idaho State Senate has approved in its most recent legislative session—this includes legislation that has been sent from the Senate to the House and legislation that has already been approved by the House and signed by the governor after its passage in the Senate. The table below includes the bill number, its name, progress, most recent action date, and sponsor. Scroll up and down and side to side to see more. Click the bill number to read the bill text and see its voting history. Click the headings to sort the content. Rearrange the order of the headings by clicking and dragging them. Click the magnifying glass in the bottom left corner to search for specific terms. The legislation tracker is maintained and updated by BillTrack50.
In 2025, the legislature was scheduled to convene on January 6, 2025, and adjourn on April 4, 2025.
| Click [show] for past years' session dates. | |||
|---|---|---|---|
2024[edit]In 2024, the legislature was scheduled to convene on January 8, 2024, and adjourn on April 10, 2024. 2023[edit]In 2023, the legislature was scheduled to convene on January 9, 2023, and adjourn on April 6, 2023. 2022[edit]In 2022, the legislature was scheduled to convene on January 10, 2022, and adjourn on March 31, 2022. 2021[edit]In 2021, the legislature was scheduled to convene on January 11, 2021, and adjourn on November 17, 2021. 2020[edit]In 2020, the legislature was scheduled to convene on January 6, 2020, and adjourn on March 20, 2020. [edit]
Several state legislatures had their sessions impacted as a result of the 2020 coronavirus pandemic. The Idaho State Legislature convened a special session on August 24, 2020. The special session adjourned on August 26, 2020. 2019[edit]In 2019, the legislature was in session from January 7, 2019, through April 11, 2019. 2018[edit]In 2018, the legislature was in session from January 8, 2018, through March 28, 2018. To read about notable events and legislation from this session, click here. 2017[edit]
In 2017, the legislature was in session from January 9, 2017, through March 29, 2017. 2016[edit]
In 2016, the legislature was in session from January 11 through March 25. 2015[edit]
In 2015, the legislature was in session from January 12 through April 11. The legislature had a one-day special session on May 18 about child support enforcement. Major issues in 2015[edit]Major issues during the 2015 legislative session included increased education funding, infrastructure improvements, tax reductions, government transparency, and additions to the state's Human Rights Act.[20] 2014[edit]
In 2014, the legislature was in session from January 6 through March 21. Major issues in 2014[edit]Major issues during the 2014 legislative session included $350 million worth of educational improvements, the state-based health insurance exchange passed in 2013 and prison reforms.[21] 2013[edit]
In 2013, the legislature was in session from January 7 to April 4. Major issues in 2013[edit]Major issues during the 2013 legislative session included the creation of a state-controlled health exchange, school reform, business tax breaks, and ethics rules.[22] 2012[edit]
In 2012, the legislature was in session from January 9 through March 29. Major issues in 2012[edit]Legislators considered setting up a state-based health care exchange as required under the federal Patient Protection and Affordable Care Act. Conservative legislators opposed to the law sought to set up a public-private ownership as a compromise, rather that risking the federal government setting up one on the state's behalf. The budget and public education reform were also major issues.[23] 2011[edit]
In 2011, the legislature was in session from January 10 through April 7. 2010[edit]
In 2010, the legislature was in session from January 11th to March 29th. |
The Tenth Amendment of the U.S. Constitution declares that any power not already given to the federal government is reserved to the states and the people.[24] State governments across the country use this authority to hold legislative sessions where a state's elected representatives meet for a period of time to draft and vote on legislation and set state policies on issues such as taxation, education, and government spending. The different types of legislation passed by a legislature may include resolutions, legislatively referred constitutional amendments, and bills that become law.
Article III of the Idaho Constitution establishes when the Legislature is to be in session; section 8 of Article III allows the Legislature to change the starting date by law. According to 67-404 Idaho Code, the Idaho Legislature convenes annually at 12:00 noon on the Monday closest to the 9th of January. Section 8 also states that the Governor of Idaho can convene special sessions of the Legislature at any time.[25][26]
Every state legislature throughout the country features its own internal procedures that it uses to govern itself and how it interacts with other parts of state government. Ballotpedia's coverage of internal state legislative procedures includes veto overrides, the role of the legislature in the state budget, procedures for filling membership vacancies, and redistricting.
State legislatures can override governors' vetoes. Depending on the state, this can be done during the regular legislative session, in a special session following the adjournment of the regular session, or during the next legislative session. The rules for legislative overrides of gubernatorial vetoes in Idaho are listed below.
How many legislators are required to vote for an override? Two-thirds of members present in both chambers.
| Two-thirds of members present in both chambers must vote to override a veto. If all members are in attendance, this is 47 of the 70 members in the Idaho House of Representatives and 24 of the 35 members in the Idaho State Senate. Idaho is one of 36 states that requires a two-thirds vote from both of its legislative chambers to override a veto. |
Authority: Article IV, Section 10 of the Idaho Constitution.
| "Every bill passed by the legislature shall, before it becomes a law, be presented to the governor. If he approve, he shall sign it, and thereupon it shall become a law; but if he do not approve, he shall return it with his objections to the house in which it originated, which house shall enter the objections at large upon its journals and proceed to reconsider the bill. If then twothirds (2/3) of the members present agree to pass the same, it shall be sent, together with the objections, to the other house, by which it shall likewise be reconsidered: and if approved by two-thirds (2/3) of the members present in that house, it shall become a law, notwithstanding the objections of the governor." |
| Idaho on |
Idaho operates on an annual budget cycle with each fiscal year beginning in July. The sequence of key events in the budget process is as follows:[27]
Idaho is one of 44 states in which the governor has line item veto authority.[27][28]
The budget the governor proposes must be balanced. The legislature is constitutionally required to pass a balanced budget, and the governor must sign a balanced budget into law.[27]
Every state legislature and state legislative chamber in the country contains several legislative committees. These committees are responsible for studying, amending, and voting on legislation before it reaches the floor of a chamber for a full vote. The different types of committees include standing committees, select or special, and joint.
Ballotpedia covers standing and joint committees. The Idaho State Senate has 10 standing committees:
In every state but Delaware, voter approval is required to enact a constitutional amendment. In each state, the legislature has a process for referring constitutional amendments before voters. In 18 states, initiated constitutional amendments can be put on the ballot through a signature petition drive. There are also many other types of statewide measures.
The methods in which the Idaho Constitution can be amended:
Article XX of the Idaho Constitution establishes two ways in which the constitution can be amended, either via legislatively referred constitutional amendments or constitutional conventions. Idaho does not feature the power of citizen initiative for initiated constitutional amendments.
A two-thirds (66.67%) vote is required during one legislative session for the Idaho State Legislature to place a constitutional amendment on the ballot. That amounts to a minimum of 47 votes in the Idaho House of Representatives and 24 votes in the Idaho State Senate, assuming no vacancies. Amendments do not require the governor's signature to be referred to the ballot.
According to Article XX of the Idaho Constitution, a constitutional convention can be called if two-thirds of the members of each house of the Idaho State Legislature vote to place before the people a question as to whether the people want to call a convention. If a majority of all the voters voting at the election vote for a convention, the legislature must arrange to have a convention.
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