State Rep. Josh Turek won Iowa’s Democratic Senate primary Tuesday, overcoming state Sen. Zach Wahls in a closely watched contest that became an early test of whether anti-establishment Democratic messaging and attacks on Senate Minority Leader Chuck Schumer (D-NY) could gain traction with primary voters in a state President Donald Trump has carried three times.

The Associated Press called the race for Turek at 9:42 p.m. Eastern time Tuesday. With 38% of the ballots counted, Turek led with 63.1% of the vote to Wahls’s 36.9%.