Maryland
Gubernatorial
In the 2018 gubernatorial election, Maryland went opposite its federal partisanship, and elected Republican governor Larry Hogan for a second term. He was able to win by running up his numbers among suburban white voters, and managing to increase already dominating Republican rural numbers. He won by about 12 points total, only losing 4 counties (Baltimore City included as a county)
One of the counties that Democrats were able to hold onto was Montgomery, which is home to many of the DC suburbs. Jealous won it by about 11 points, but thats a huge drop from normal Democratic numbers. Republicans only won 1 precinct in the 2020 Presidential race here
The Greater Baltimore area is a place where Hogan saw a significant surge in strength. Democrats usually win Baltimore City and County by double digits, but Hogan was able to win the pair by 2 points. White voters swung hard towards hogan, while the belt of Black voters in the south of the region held for Jealous. Notably, Baltimore County was Republican leaning pre-Clinton era
Maryland's Eastern shore, along with the western panhandle, is one of the 2 most conservative areas of the state. Hogan was able to rack up a 53.5 point margin here, and win the vast majority of precincts. Only some majority nonwhite areas in Salisbury, Cambridge, and Princess Anne really showed some opposition to Hogan. Typically, Republican candidates do about 20 points worse than this, as Biden won Talbot and Kent counties (and nearly Wicomico) here while Hogan swept them
The new MD-03 used to be more favorable to Republicans, and their last kick was the 2018 gubernatorial race. Hogan won the district by almost 30 points, with Jealous only retaining Democratic strength in Howard County. The opposing ends of the district in portions of Carroll and Anne Arundel County went blood-red, save for more African American precincts in Annapolis and Severn