They value sophistication above almost anything, and so they regard their own hyperactive president, Nicolas Sarkozy, with his messy romantic life and model-singer wife, as “Sarko the American.”

But this year has been difficult for the French. Sarkozy has generally supported American foreign policy and has praised the United States’ openness and entrepreneurial verve. And the sudden emergence of Senator Barack Obama — black, and seen as elegant and engaged with the larger world — has sent many French into a swoon.

But the combination of two recent surprises — Governor Sarah Palin and America’s terrifying financial meltdown — has brought older, nearly instinctual anti-American responses back to the surface.