4.55%. most of the republicans running for president, or considering it are opposing house speaker boehner's attempt to raise the debt limit. chief political correspondent karl cameron goes down the press list. >> minnesota congresswoman michele bachmann dismissed the boehner plan to raise the national debt limit beyond $14.3 trillion and vowed to lead the opposition against any increase in federal borrowing. >> i can't support any plan that begins with the assumption that we have to raise the debt limit, and yet doesn't offer a fundamental restructuring of government spending habits. i won't do it. >> in texas, this week, governor rick perry, expected to join the presidential race within a month, suggested he too is prepared for a default, downplaying the potential disaster both parties in d.c. predict. >> this threat that somehow or another the world is going to come to an end, the threat of -- we're not going to be able to pay our bills is a bit of a stretch. most americans know this --