PENSACOLA, Fla. — President Trump’s crowd was here in Florida on Friday night, but his audience was in Alabama.

Just four days before a crucial special election for a Senate seat in Alabama, Mr. Trump again offered his unequivocal backing for the Republican nominee, Roy S. Moore, a candidate dogged by accusations from women, including one who was 14 at the time, that he had assaulted them or had inappropriate contact with them decades ago.

Mr. Trump was about 45 minutes into his speech, though, before he even mentioned Mr. Moore. But when prompted to do so by a man in the crowd, the president quickly obliged.

“This guy’s screaming, ‘We want Roy Moore,’” Mr. Trump said. “He’s right. How many people here are from the great state of Alabama?”