For Democrats hoping to seize back the U.S. House amid a purported "blue wave" of liberal enthusiasm against President Donald Trump, Michigan could deliver a key victory or two - but it won't come easily.
Two years ago, the battleground state went for Trump, leaving Democrats scrambling to rework their strategy in the Midwest. This November will be the first test for them to prove their messaging still resonates in Rust Belt territory.
But before that comes Michigan's primary on Aug. 7, where several races will be closely watched. They include open seats left by incumbents' departures. GOP Rep. David Trott is leaving his seat in the 11th District and Democratic Rep. Sander Levin is retiring from the 9th.
Meanwhile, several Democratic candidates want to replace former Rep. John Conyers in the 13th. He resigned last year after he was accused of groping and sexually harassing women.