The overriding sentiment from the crowd in McIntosh, a mix of Baptists, Pentecostals and other Christian denominations, was that Judge Kavanaugh should be confirmed quickly. Even the latest allegation from a Yale classmate of his who said he exposed himself to her at a party — which had not surfaced by the time of the festival — would probably hold little sway given how skeptically they viewed the first accuser.

The willingness of many of the president’s defenders to reject almost any accusations leveled against him or his administration as embittered exaggerations by people who can’t accept that he won has become commonplace each time a new controversy hits. But perhaps because of the high stakes of the Kavanaugh nomination and its importance to social conservatives — who among Mr. Trump’s supporters believe they have the most to win, or lose, from his presidency — the backlash has been especially potent this time.

At the festival, people expressed different reactions to Christine Blasey Ford’s accusation that when they were in high school, a young Brett Kavanaugh pinned her to a bed at a party and tried to remove her clothes. Some said it never happened, dismissing it as the fabrications of an agent paid to lie by Democrats. Others excused it as ordinary, hormonal teenage misbehavior.

But like many prominent Republicans and conservatives who have rallied to the judge’s side, everyone interviewed by The New York Times said Dr. Blasey’s accusation was another attempt by Democrats to interfere with Mr. Trump’s presidency and stop him from honoring the promises they elected him to fulfill.

“If they can’t win, pull out a scandal,” said Trish Bernard, 55, a retired school bus driver and milk carrier from Mt. Vernon, Ala.

Ms. Bernard said she could still not get past what she suspected were the Democrats’ motives. The direction Mr. Trump has taken the country “may not be the way they wanted it,” she said. “And they haven’t been able to oust him.”