2022Final results
2022 election for Maryland's 1st District
U.S. House · Maryland
Andy Harris (R) won with 54.4% of the vote, defeating Heather R. Mizeur (D) by 11.3 points.
Andy HarrisRepublican · winner
54.4%159,673
Heather R. MizeurDemocrat
43.1%126,511
Daniel Frank ThibeaultLibertarian
2.4%6,924
293,358 votes
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
The seat over time
D − R margin in this seat's races around 2022
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Heather R. MizeurAndy Harris
$2.8M
Raised by the campaign
$1.9M
$2.8M
Spent by the campaign
$2.2M
$8.8K
Cash on hand
$813.2K
Campaign money: FEC, through Dec 31, 2022.
Source: FEC campaign filingsUpdated Dec 31, 2022