Rep. Gil Cisneros (D-Calif.) is slated for a rematch in November against Republican Young Kim after they both secured spots in the all-party primary on Tuesday.
Cisneros narrowly flipped the Orange County-area district from red to blue in 2018 after longtime GOP incumbent Rep. Ed Royce retired.
The district became a top target for Democrats during the 2018 midterms after former Secretary of State Hillary Clinton carried it in 2016.
It took more than a week for the competitive race to be called in 2018. Cisneros ultimately defeated Kim, a former member of the state assembly, by about 3 points.
Cisneros, a Navy veteran, was among the seven freshman lawmakers with national security backgrounds who wrote a Washington Post op-ed calling for an impeachment inquiry into President Trump’s efforts to pressure the Ukrainian government to investigate his political opponents.
The Cook Political Report currently rates the race as “lean Democratic.”