Trump news at a glance: president forces out another Republican who crossed him

Thomas Massie, who repeatedly broke with Trump, lost to retired Navy Seal Ed Gallrein who was recruited into the race by the president. Key US politics stories from Tuesday 19 May at a glance

Donald Trump displayed his supremacy over the Republican party on Tuesday when voters in northern Kentucky rejected the maverick congressman Thomas Massie in favour of the US president's hand-picked challenger.

Ed Gallrein, a retired Navy Seal and farmer who was recruited into the race by Trump, defeated the seven-term incumbent in a primary election in Kentucky's fourth congressional district, in what the president's allies framed as a test of whether dissent could still exist inside today's Republican party.