'Independent fact checkers find that the information she relies on is often exaggerated, misleading or wrong. PolitiFact, a Pulitzer Prize-winning feature of the St. Petersburg Times that checks whether statements made by politicians are true, has repeatedly determined that Bachmann's claim don't ring true.
"We have checked her 13 times, and seven of her claims to be false and six have been found to be ridiculously false," PolitiFact editor Bill Adair said.
Adair said no politician has been checked as often as Bachmann without saying at least something that's true.
"I don't know anyone else that we have checked, more than a couple times, that has never earned anything above a false," he said. "She is unusual in that regard that she has never gotten a rating higher than false."'
http://minnesota.publicradio.org/display/web/2011/01/21/michele-bachmann-iowa-misstatements/