London Mayor Sadiq Khan on Friday slammed President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE ahead of his state visit to the United Kingdom next month, saying Trump is not in the “same class” as presidents who made such trips in the past.

“Of course we should have a close relationship with the president of the United States, but we shouldn’t be rolling out the red carpet; we shouldn’t have a state banquet,” Khan said during an interview with LBC, a British talk-radio station.

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“History tells us only two presidents have had a state visit,” Khan said, referring to former Presidents Barack Obama and George W. Bush.

“President Trump is not in the same class as those two,” added the London mayor, who has openly feuded with Trump in the past.

Trump is scheduled to travel to the U.K. June 3-5, marking his first official state visit to the country since becoming president.

“It’s possible to have a working relationship without the need to have a state banquet and roll out the red carpet,” Khan said.

The London mayor said he hoped British Prime Minister Theresa May Theresa Mary MayAre US-Japan relations on the rocks? Trump insulted UK's May, called Germany's Merkel 'stupid' in calls: report Bolton says Boris Johnson is 'playing Trump like a fiddle' MORE would confront Trump about his coarse language about women, which he suggested could encourage others to disparage female politicians.

“The impression is being given that you can get away from it — that you get a get-out-of-jail card. But it’s worse than that,” Khan said, referring to Trump’s comments about women who had accused him of sexual assault. “There’s a boasting and bragging, it’s almost like a green light for others to behave badly.”

“We’re their closest mates, we have a special relationship. That gives us a responsibility to call people out who we otherwise wouldn’t do so.”

Trump visited the U.K. in July and met with Queen Elizabeth II at Windsor Castle, though that trip was not considered an official state visit. May extended the invite in January 2017, shortly after Trump’s inauguration, but the trip was repeatedly delayed amid fraying ties with the prime minister.

Trump and Khan have quarreled in the past, with the London mayor saying during the 2016 campaign that because he is Muslim he would be prevented from coming to the U.S. under Trump’s proposed travel ban.

Trump fired back and called Khan “rude” and “ignorant.”

The president attacked Khan last year over his response to a string of terrorist attacks in the British capital.

“Take a look at the terrorism that is taking place. Look at what is going on in London. I think he has done a very bad job on terrorism,” Trump said. “I think he has done a bad job on crime, if you look, all of the horrible things going on there, with all of the crime that is being brought in.”