President Donald Trump listens while U.S. Senate candidate from Missouri, Josh Hawley. Photo: Brendan Smialowski/AFP/Getty Images
Missouri Attorney General Josh Hawley won Tuesday night’s GOP primary for the state's Senate seat in a crowd of 11 Republican candidates.
Why it matters: Sen. McCaskill has been considered a vulnerable Democrat since 2012 and Republicans are going all-in to help Hawley win and to reclaim this seat. The race is expected to be very close in November in a state President Trump won by nearly 19 points.