Republican Rep. John Duarte and Democratic challenger Adam Gray are battling for California's 13th Congressional District in a rematch of a 2022 race decided by just over 500 votes. Duarte, considered a moderate Republican, has represented the district since the 2022 election, while Gray, a moderate Democrat, previously represented Merced and Stanislaus counties in California's 21st Assembly District from 2012 to 2022. The race is one of a handful of competitive races in the state that could help decide control of the U.S. House.