Just caught Chris Wallace's "are you a flake?" interview with Michele Bachmann (Wallace has now apologized for that question; I don't think he intended to charge her with being a flake, but, as he admits, the question overshadowed the answer. She'll face much worse from the legacy media).
Wallace was hard-hitting, but Bachmann was poised, articulate and informed, and never struck me as sounding defensive. I found her impressive.