Late last year, Tom Nichols, a professor at the Naval War College and a NeverTrump conservative, proposed a little thought experiment for Republicans skeptical of Robert Mueller’s investigation of the Trump campaign’s Russia ties.

“Let’s play Alternate Universe,” he wrote on Twitter. “It’s 2017, and President Hillary Clinton is facing charges that Chelsea met with Russians who offered oppo on Trump. Chelsea didn’t call the FBI; and Clinton nat sec adviser Jake Sullivan lied to the FBI about talking to the Russians.”

Nichols laid out the unfolding drama over a series of tweets. President Clinton fires the F.B.I. director after he declines her request to “let it go” on Sullivan. “Then, at least three other Clinton campaign officials end up indicted. All of them are tied in some way to a hostile foreign power.” Later, she threatens to “yank FOX’s license” because she didn’t like its critical coverage.

“I’m sure … totally sure …” Nichols added with no little irony, “that stalwarts of the G.O.P. would say: Look, this is a nothingburger, you can’t define ‘collusion,’ it’s just ‘the coffee boy,’ and on and on.”