Steve Bannon has used a new interview to attack the Pope over his anti-populism, as the former Trump adviser ramps up his message ahead of the European elections.

In an interview with NBC News, to be broadcast in the US on Sunday night, Mr Bannon said the Pontiff should stay out of politics.

“He’s the administrator of the church, and he’s also a politician. This is the problem,” said Mr Bannon. “He’s constantly putting all the faults in the world on the populist nationalist movement.”

The Pope’s remarks about social justice have frequently irked Mr Bannon and his ideological mindfellows, like the US president.