Jim Geraghty writes the next MasterCard ad:

Planned campaign expenditures for television ads with message, "McCain is as bad as George W. Bush": $100 million.

Planned campaign expenditures for radio ads with message, "McCain is as bad as George W. Bush": $20 million.

Planned expenditures for independent 527 groups reinforcing "McCain is as bad as George W. Bush" message: $200 million.

Wrecking that entire message effort with one offhand comment:

"All three of us would be better than George Bush," Obama said.

Priceless.