Jeb Hensarling: 'I cannot in good conscious support this legislation'

A principled conservative:

[The bailout] could permanently and fundamentally change the role of government in the American free enterprise system. Once the government socializes losses, it will soon socialize profits. If we lose our ability to fail, we will soon lose our ability to succeed. If we bail out risky behavior, we will soon see even riskier behavior.

(Via Michelle Malkin.) Hensarling's position sounds a lot like libertarian populism.