“What Trump’s outbursts are actually doing for the conference is honing our ability to weed out and stop responding to things that don’t matter,” a senior Republican House aide said, requesting anonymity in order to speak candidly. “It has made us more disciplined.”

A second senior Republican aide referred to Trump’s unfounded allegations that Obama “wiretapped” him, made last weekend in multiple Twitter posts, as “errant tweets” that wouldn’t impact the party’s legislative agenda. Indeed, healthcare arguably dominated the week.

To the extent that Republicans are still concerned about Trump’s Twitter habit, that anxiety resides in the Senate. And, particularly, Republican senators worry about the president’s habit of spreading obviously false information over the medium.

In interviews with the Washington Examiner, Republican senators focused on the issue of credibility.