Rock Hill, South Carolina (CNN) - Nearly every Republican presidential candidate has pledged to sign the "Cut, Cap and Balance" pledge to slash government spending, but U.S. Rep. Michele Bachmann is not ready to commit.
Her reason? It doesn't go far enough.
The pledge, backed by more than 150 conservative groups and a dozen GOP Republican senators, demands that Congress not raise the debt ceiling unless it passes "substantial" budget cuts and spending caps along with a balanced budget amendment to the U.S. Constitution.
Former Massachusetts Gov. Mitt Romney became the sixth GOP candidate to support the pledge on Wednesday.
Bachmann, though, said she wants it "to go a little further." She told a town hall audience in South Carolina that she wants to add "the full defunding of Obamacare" to the pledge first.
She revealed that U.S. Sen. Jim DeMint of South Carolina, a leading conservative backer of the pledge, had asked her to get on board.
She and DeMint had "a wonderful conversation" about the pledge during a phone call last week, Bachmann said. She only told him, though, that she "would take a look at it."