From Ballotpedia | 2018 Maryland General Assembly elections | |
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| General | November 6, 2018 |
| Primary | June 26, 2018 |
| 2018 elections | |
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The Democratic primary elections for the seats in the Maryland State Senate and Maryland House of Delegates were on June 26, 2018. For information about the Republican primary elections in Maryland, click here.
The general election was on November 6, 2018. The candidate filing deadline was February 27, 2018. In the state Senate, all 47 seats were up for election. In the state House, all 141 seats were up for election.
Ten Democratic state Senate incumbents did not file for re-election.
Twenty Democratic state House incumbents did not file for re-election.
Four Democratic state Senate incumbents were defeated.
Seven Democratic state House incumbents were defeated.
Compared to 2014 (the last time the state legislature held elections), there were 12 fewer open seats, roughly the same number of candidates running, and seven more contested Democratic primaries.
| Year | Total seats | Open seats | Total candidates | Democratic primaries contested | Republican primaries contested | Total contested | Incumbents contested in primaries | Total incumbents contested in primaries |
|---|---|---|---|---|---|---|---|---|
| 2018 | 188 | 38 | 520 | 64 | 26 | 39.5% | 107 | 71.3% |
| 2014 | 188 | 50 | 517 | 57 | 27 | 36.8% | 92 | 66.7% |
The tables below show the partisan breakdowns of the Maryland House of Delegates and Maryland State Senate as of June 2018:
| Party | As of June 2018 | |
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| Democratic Party | 90 | |
| Republican Party | 50 | |
| Vacancies | 1 | |
| Total | 141 | |
| Party | As of November 2025 | |
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| Democratic Party | 33 | |
| Republican Party | 14 | |
| Vacancies | 0 | |
| Total | 47 | |
Ballotpedia identified battleground races in the 2018 Maryland state legislative Democratic primary elections. These primaries had the potential to be more competitive than other races and could have led to changes in the membership of the Democratic caucus or had an impact on general election races.
To determine the Maryland state legislative Democratic primary battleground races in 2018, Ballotpedia examined races that fit one or more of the three factors listed below:
This section provides an overview of media reactions to the Maryland state legislative Democratic primaries.[1] Selected articles are presented as a jumping-off point for deeper exploration of media coverage and as an overview of narratives that have emerged surrounding the elections.
A primary election is an election in which registered voters select a candidate that they believe should be a political party's candidate for elected office to run in the general election. They are also used to choose convention delegates and party leaders. Primaries are state-level and local-level elections that take place prior to a general election. Maryland law stipulates that political parties can determine for themselves who may participate in their primary elections. As of October 2025, both the Democratic and Republican parties operated a closed primary where only a voter affiliated with the party may vote in a party's primary.[2]
For information about which offices are nominated via primary election, see this article.
In Maryland, all polling places are open from 7:00 a.m. to 8:00 p.m. Eastern Time. An individual who is in line at the time polls close must be allowed to vote.[3]
According to the Maryland State Board of Elections, to register to vote in Maryland, one must be a United States citizen and Maryland resident who is at least 16 years old. Although a 16-year-old can register to vote, they cannot vote in an election unless they will be 18 at the time of the next general election (i.e., 17-year-olds are permitted to vote in primary elections, so long as they'll be 18 by the time of the corresponding general election).[4]
Maryland allows same-day voter registration during the early voting period and on Election Day.[4]
Voters may register online, by mail, or in person at one of the following locations:[4]
Maryland automatically registers eligible individuals to vote through the Motor Vehicle Administration.[5]
Maryland has implemented an online voter registration system. Residents can register to vote by visiting this website.
Maryland allows same-day voter registration.[4]
A voter registration applicant must be a resident of the state.[4]
Mayland does not require proof of citizenship for voter registration. An individual applying to register to vote must attest that they are a U.S. citizen under penalty of perjury.
Several local jurisdictions in Maryland permit noncitizens to vote in at least some local elections. These jurisdictions maintain separate voter registration systems for noncitizen voters. See here for more information.
All 49 states with voter registration systems require applicants to declare that they are U.S. citizens in order to register to vote in state and federal elections, under penalty of perjury or other punishment.[6] Seven states — Alabama, Arizona, Georgia, Kansas, Louisiana, New Hampshire, and Wyoming — have laws requiring verification of citizenship at the time of voter registration, whether in effect or not. One state, Ohio, requires proof of citizenship only when registering to vote at a Bureau of Motor Vehicles facility. In three states — California, Maryland, and Vermont — at least one local jurisdiction allows noncitizens to vote in some local elections. Noncitizens registering to vote in those elections must complete a voter registration application provided by the local jurisdiction and are not eligible to register as state or federal voters.
The voter lookup page, run by the Maryland State Board of Elections, allows residents to check their voter registration status online.
Maryland does not require voters to present identification while voting, in most cases.[3]
The federal Help America Vote Act requires that individuals in all 50 states who register to vote by mail and who have not voted previously in a federal election in their state must provide either their driver's license or a paycheck, bank statement, current utility bill, or government document showing their name and address. Individuals voting by mail must include a copy of one of those documents with their absentee/mail-in ballot.[7]
These requirements do not apply if an individual submitted a copy of their identification, their driver's license number or the last four digits of their Social Security number when registering to vote.
A voter will also be asked to show ID in these other circumstances:[8][9]
The following list of accepted ID was current as of October 2025. Click here for the Maryland State Board of Elections' voting information page to ensure you have the most current information.
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Maryland permits early voting. Learn more by visiting this website.
Early voting permits citizens to cast ballots in person at a polling place prior to an election. In states that permit no-excuse early voting, a voter does not have to provide an excuse for being unable to vote on Election Day. States that allow voters to cast no-excuse absentee/mail-in ballots in person are counted as no-excuse early voting states.
Forty-seven states and the District of Columbia permit no-excuse early voting.
All voters are eligible to vote absentee/by-mail in Maryland. There are no special eligibility requirements for voting absentee/by-mail.[11]
To receive an absentee/by-mail ballot in the mail, an application must be submitted by at least seven days prior to the election, whether by mail, in-person, or by fax or email. To print an absentee/mail-in ballot at home, the application must be received by 5 p.m. on the Friday before Election Day.
A voter can return their ballot in person to a voting location or drop box until 8:00 p.m. on Election Day. A ballot returned by mail must be postmarked by Election Day.[11]
Categories: [Maryland elections, 2018] [State legislative primary elections, 2018] [Democratic state legislative primary elections, 2018]