"I believe how the pledge is interpreted and enforced by Mr. Norquist is a roadblock to realistically reforming our tax code, " he said.

CNN: Norquist's no-tax pledge has survived challenges before

Everything must be on the table, and I believe how the pledge is interpreted and enforced by Mr. Norquist is a roadblock to realistically reforming our tax code.

FORBES: The Supercommittee And The Attempted Slandering Of Grover Norquist