[4] Maryland has eight seats to the United States House of Representatives, which are currently held by seven Democrats and one Republican.

Incumbent Republican governor Larry Hogan was term-limited by the Maryland Constitution and could not run for re-election.

Incumbent Comptroller Peter Franchot was eligible to run for a fifth term, but instead ran for Governor of Maryland.

[7] Democratic candidates Bowie mayor Tim Adams and state delegate Brooke Lierman,[8][9] and Republican Harford County executive Barry Glassman,[10] filed to run in the primary election.

[12] Democratic candidates included U.S. representative and former lieutenant governor Anthony Brown[13] and retired judge and former First Lady of Maryland Katie O'Malley.