At least three times in recent days, Mr. Bush has let fly a “damn,” or some variation, to enliven remarks on the stump during his “Jeb Can Fix It” tour in New Hampshire and Florida.

“We’re Americans, damn it!” he shouted on Tuesday, admiring the national moxie at a barbecue in Rye, N.H.

“A president has to roll up their damn sleeves and get to work,” he told voters in Raymond, N.H., hours later.