If anything could push the GOP towards some free-market populism — opposing bailouts, standing up to lobbyists, cutting spending — it would be the election of Rand Paul, son of Rep. Ron Paul, in Kentucky. The younger Paul has railed against bailouts and lobbyists, while the establishment of the GOP has rallied behind Secretary of State Trey Grayson in the primary.

But the U.S. Chamber of Commerce has endorsed Trey Grayson, TPM reveals. I generally like the Chamber, as it tends to oppose regulatory robbery. But when the Chamber shuns a candidate for being too free market, that’s quite an endorsement.