"These guys are going to the enforcers," said Steve Lonegan, a tea party activist. "They can help force the Republican Party to live up to its promises."
Tea party darlings Marco Rubio, Rand Paul, Mike Lee must work with Donald Trump →
"Trump has not succeeded in galvanizing them and getting them energized to support him, and that's his responsibility," Mr. Lonegan said.
'Never Trump' Republicans weigh how -- or whether -- to vote on Election Day →