It’s now crystal clear what President Trump thinks of Prime Minister Keir Starmer of Britain.

Over the weekend, Mr. Trump shared on social media a brutal skit from Britain’s new version of the “Saturday Night Live” show, portraying the prime minister as overly eager to please the president and terrified of him. “Golly,” the actor portraying Mr. Starmer says, “what if Donald shouts at me?”

Mr. Trump’s decision to distribute the skit to millions of his followers is the latest presidential disparagement of his British counterpart. In recent weeks, the president has mercilessly mocked Mr. Starmer as cowardly and spineless because of his unwillingness to fully join the fight against Iran. Mr. Trump has repeatedly said that Mr. Starmer is “No Winston Churchill” and chided him for not clearing the way for U.S. jets to use British bases for the initial strikes.

“We don’t need people that join Wars after we’ve already won!” the president wrote on March 7.

For Mr. Starmer, who has spent more than a year trying to be Europe’s Trump whisperer, the very public crumbling of their relationship comes at an already difficult time. Ukraine still needs American support to defend itself against Russia, a key priority for the British government. Mr. Starmer is fighting the perception that he refuses to take firm stands on policy. And now, the conflict with Iran is further damaging the already wobbly British economy.

The prime minister continues to talk privately with the president — including a 20-minute call on Sunday evening not long after the president circulated the “S.N.L.” skit online — but it’s unclear how much sway he has. What started early in 2025 with Mr. Trump praising Mr. Starmer for doing “a very good job,” has now reached the stage where the prime minister is repeatedly insisting that the “special relationship” between Britain and the United States still exists. (In the S.N.L. U.K. skit, it is referred to as the “special situationship.”)

A spokesman for Mr. Starmer declined on Monday to say whether the prime minister had seen the “S.N.L.” skit or had discussed it with Mr. Trump. The spokesman said only that the prime minister is focused on responding to the president’s demands in a way that is in the British national interest without letting his country be dragged into the war.