But Trump's flashy performance was about more than showmanship. His visit to Alabama was coolly strategic, touching down in the heart of red America and an increasingly important early battleground in the Republican nominating contest.

The Manhattan developer, who strode onstage to "Sweet Home Alabama," is trying to show that his candidacy has broad and lasting appeal across every region of the country — especially here in the South, where Alabama and seven other states are holding a clustered voting blitz March 1.

The scene Friday night put an exclamation point on an extraordinary run in which the flamboyant mogul has thoroughly disrupted the presidential campaign and kindled a national discussion about not just politics but American culture itself.