If President Trump’s shock-and-awe attack on truth, decorum and liberal sensibilities is intended to bludgeon his opponents into submission, “Saturday Night Live” felt like his latest victim this weekend.

Not that the show, which has been one of his most outspoken and popular antagonists, didn’t remain on the attack. Melissa McCarthy reprised her savage impersonation of Sean Spicer, the White House press secretary, and Alec Baldwin (in his 17th appearance as host) donned his flaxen wig and prosthetic jowls to play Mr. Trump in a “People’s Court” sketch mocking the president’s attempts to have his travel ban reinstated. Kate McKinnon — who, in a Tatiana Maslany-style tour de force, also appeared as Attorney General Jeff Sessions and Senator Elizabeth Warren — played the presidential counselor Kellyanne Conway trying to seduce her way onto CNN in a “Fatal Attraction” spoof.

But there was a sense of exhaustion — of “How long can we keep this up?” — that was made explicit in the court sketch when Cecily Strong, as the judge, said to Mr. Baldwin’s Trump: “You’re doing too much. I want one day without a CNN alert that scares the hell out of me.” It was delivered plaintively, not as a laugh line but as a weary, nervous plea.