WASHINGTON — After 61 weeks in the White House, President Trump has found two people he won’t attack on Twitter: Stormy Daniels and Karen McDougal.

The verbose commander in chief has posted more than 2,900 times on Twitter since taking office, using the term “FAKE NEWS” to describe everything from the Russia inquiry and allegations of chaos in the White House to harassment accusations, the size of his inaugural crowds and heated arguments with world leaders.

But he has been uncharacteristically silent in recent days — to the relief of his advisers — as a pornographic film star and a Playboy model described intimate details of sexual encounters with Mr. Trump. Stephanie Clifford, known in pornographic films as Stormy Daniels, said Sunday night on CBS’s “60 Minutes” that she once spanked the president with a copy of Forbes magazine bearing his face on the cover.

The fact that the president has not given oxygen to the headlines, however, does not mean that he is content.