The battlefield for the House majority is starting to come into focus as more states hold primaries ahead of November.
California, which is certain to be key to both parties’ efforts to win the lower chamber, just held its primaries on Tuesday, while New York — another all-important battleground — will hold its House primaries in June.
With Republicans holding just a slim majority in the lower chamber, several races in these states are headed for contentious, close finishes.
Here are nine House races that will help determine who controls the majority in the lower chamber this fall:
California’s 13th Congressional District
In California’s 13th District, Republican Rep. John Duarte and Democrat Adam Gray are advancing to a rematch.
Duarte finished roughly 9 points ahead in this year’s primary — but he won the midterms by just a couple hundred votes, the first time in decades that a Republican had won the district. It was also the second closest congressional race in the country that year.