The 2018 Maryland House of Delegates elections were held on November 6, 2018, as part of the biennial United States elections. All 141 of Maryland's state delegates were up for reelection.
Prior to the election, there was little doubt that Democrats would hold their majority in the chamber. Maryland's House of Delegates has had a Democratic majority since the elections of 1920, and it remains a solidly Democratic in elections at both the national and state level. Still, there was some discussion about whether or not Republicans would be able to make inroads in the chamber, especially considering that popular incumbent governor Larry Hogan was running for reelection at the top of the ticket simultaneously. These hopes were not met; though Hogan won his race by double digits, there was very little down-ballot appetite for Republicans, including in the House of Delegates.
Democrats picked off eight seats from Republicans, while Republicans flipped one seat from Democrats. The result was a net gain of seven seats for the Democrats, which came from across the state. Six counties had seats flip to the Democrats, including two in Baltimore County. The one seat Republicans did pick up was in a conservative Anne Arundel County district where a retiring incumbent had switched parties from Republican to Democratic the month before the election.
Overall, the results were a seen as a disappointment for Republicans, who had hoped Hogan's success would carry more Republicans to Annapolis. After the elections, Democrats held 99 seats to the Republicans' 42, meaning Democrats were in possession of more than 70% of seats in the chamber—maintaining their three-fifths supermajority capable of overriding gubernatorial vetoes. Many factors contributed to the Democrats' gains, but President Donald Trump's unpopularity in Maryland, as well as the state's large and growing minority population and its heavily suburban nature, were among the most important.
Retiring incumbents
Democrats
Republicans
- District 4: Kathy Afzali retired to run for Frederick County Executive.
- District 4: David E. Vogt III retired.
- District 7: Pat McDonough retired to run for Baltimore County Executive.
- District 8: Christian Miele retired to run for state senator in District 8.
- District 30: Herbert H. McMillan retired.
- District 38C: Mary Beth Carozza retired to run for state senator in District 38.
- District 42B: Chris West retired to run for state senator in District 42.
- District 42B: Susan L. M. Aumann retired.
Incumbents defeated
In primaries
Democrats
- District 19: Maricé Morales lost renomination to Charlotte Crutchfield, Vaughn Stewart, and incumbent Bonnie Cullison.
- District 23B: Joseph F. Vallario Jr. lost renomination to Ron Watson and incumbent Marvin E. Holmes Jr..
- District 39: Shane Robinson lost renomination to Gabriel Acevero, Lesley Lopez, and incumbent Kirill Reznik.
- District 40: Bilal Ali and Angela Gibson lost renomination to Dalya Attar, Tony Bridges, and incumbent Samuel I. Rosenberg.
- District 47A: Jimmy Tarlau lost renomination to Julian Ivey and incumbent Diana M. Fennell.
- District 47B: Carlo Sanchez lost renomination to Wanika B. Fisher.
In the general election
Republicans
- District 3B: William Folden lost to Kenneth P. Kerr.
- District 8: Joe Cluster lost to Harry Bhandari, Joseph C. Boteler III, and incumbent Eric M. Bromwell.
- District 9B: Robert Flanagan lost to Courtney Watson.
- District 29B: Deb Rey lost to Brian M. Crosby.
- District 33: Tony McConkey lost to Heather Bagnall and incumbents Michael E. Malone and Sid Saab.
- District 34A: Glen Glass lost to Steven C. Johnson and incumbent Mary Ann Lisanti.
Predictions
List of districts
All election results are from the Maryland Board of Elections.
District 1A
District 1B
District 1C
District 2A
District 2B
District 3A
District 3B
District 4
District 5
District 6
District 7
District 8
District 9A
District 9B
District 10
District 11
District 12
District 13
District 14
District 15
District 16
District 17
District 18
District 19
District 20
District 21
District 22
District 23A
District 23B
District 24
District 25
District 26
District 27A
District 27B
District 27C
District 28
District 29A
District 29B
District 29C
District 30A
District 30B
District 31A
District 31B
District 32
District 33
District 34A
District 34B
District 35A
District 35B
District 36
District 37A
District 37B
District 38A
District 38B
District 38C
District 39
District 40
District 41
District 42A
District 42B
District 43
District 44A
District 44B
District 45
District 46
District 47A
District 47B
References




