The Kentucky Republican, a frequent critic of President Trump, teamed with a Democrat in a maneuver that could force G.O.P.

Daniel Butierez wins Republican nomination for U.S. House in Arizona's 7th Congressional District special primary election.

U.S. Rep. Thomas Massie has stockpiled more than $1.7 million for his re-election bid as the Kentucky Republican gears up to face President Donald Trump’s vaunted political operation, Massie’s ...

President Donald Trump’s grip on the GOP is eroding the party’s ideological center, as many lawmakers conclude there’s little room left for compromise — or for them. Among the latest ...