Maryland voters have set key battles for crucial House of Representatives seats for the general elections later this year. So far, four Republican nominations have been confirmed, while seven Democrats have secured their tickets. The remaining results may get delayed due to staff shortages and election norms set by Maryland authorities.

Maryland District 1

Incumbent Andy Harris won the Republican nomination, but remained largely unchallenged in Tuesday’s polls. Harris will be competing with Heather Mizeur, who won more than 68% of the seats.

Also Read: US primaries: Chris Van Hollen wins Democratic ticket for US Senate

Maryland District 5

Steny Hoyer, who is currently the majority leader in the US House of Representatives, beat M. Wilkes in Tuesday’s primaries. Hoyer won more than 67% of the votes. He will now meet Chirs Palombi in the midterm elections.

Maryland District 6

David Trone, the Democratic incumbent, won the primary election after defeating B. Smilowitz, who managed to secure a little over 4,000 votes on Tuesday. Neil Parrott, a state legislator of Maryland, bested former journalist Matthew Foldi for the Republican nomination.

Maryland District 8

Jamie Raskin, the incumbent and popular Democrat, comfortably won his Congressional district’s primary and got nearly 93% of the votes. Gregory Coll won the Republican nomination for the same district.

The incumbent in the 4th District, Representative Anthony Brown, left his seat to run for attorney general. He won the Democratic primary on Tuesday night, defeating Katie Curran O’Malley, the former first lady, a former Baltimore judge and the daughter of former Attorney General J. Joseph Curran Jr. Brown was Gov. Martin O’Malley’s lieutenant governor.

Also Read: US primaries: Dan Cox takes GOP nomination for Maryland governor, Kelly Schulz loses

The Maryland primary was delayed by three weeks because of lawsuits challenging the state’s congressional and state legislative maps.

And now, the election results are delayed. It could take days, or even longer, to determine the winners in the most closely contested races. That’s because Maryland law prohibits counties from opening mail ballots until the Thursday after election day.