The president came out in support of Senator Roger Marshall, who is facing and unexpectedly strong challenge from Democrat Adam Hamilton

The fact that Donald Trump was here at all said more about a looming electoral disaster facing his Republican party next month than anything contained in his dark and discursive 98-minute stump speech.

On Monday, amid raucous chants of “USA! USA!”, the president held his first campaign rally in Kansas for eight years. No Democrat has won a US Senate seat in this ruby-red state since 1932, the year Herbert Hoover was president, Amelia Earhart was the first woman to fly solo across the Atlantic and the Nazis became the biggest party in the German Reichstag.

President at Kansas rally tries to turn protests into cautionary tale for US as Republicans face midterm losses

• Explainer: why are people protesting across Europe?

As Republicans confront mounting political headwinds ahead of November’s midterm elections, Donald Trump is attempting to turn unrest in France into a cautionary tale for American voters, recasting the demonstrations that began as student protests against crumbling schools and the soaring cost of living as evidence of the dangers of immigration and the erosion of western civilization.

At a rally in Kansas on Monday evening, Trump described France as a once-great nation that had been “conquered, looted, and burned to the ground by migrants, jihadists, and communists”.