To grab the attention of freshmen at the student club fair this month, the College Republicans of George Washington University unfurled a red banner and set out beer cozies and lime green beer-pong cups sent by the College Republican National Committee, which bills itself as “the best party on campus.”

Then came the issue of decorating.

“We should put the Trump posters out,” said Demri Scott, the group’s 20-year-old membership director.

Christian Miller, the club’s political affairs director, disagreed.

“That’s the best way to, A, get us heckled a lot and, B, get no one to sign up,” he said.

The Trump posters stayed in the box.

For decades, College Republicans have drawn ridicule from — and defined themselves against — the more liberal masses on college campuses. But this year has been especially nightmarish for C.R.s, as they call themselves.