Michele Bachmann is a Ron Paul protege, she joins his weekly briefings, they have helped each other over the years, and she is just another late-to-the-party wanna-be - like Paul - to the genuine foundation of the now-called Tea Party movement.
Barry Goldwater and Ronald Reagan planted the seeds and Tx Gov Rick Perry was a major catalyst long before Ron Paul and Michelle Bachmann opportunistically seized the limelight - for personal gain.
Ron Paul is clueless about foreign policy and is utterly unelectable - and a Congresswoman with little history of working well with others, no major elected executive experience (like Obama), and a tendency to get her facts wrong is no more electable.
I like Herman Cain, might be able to tolerate Tim Pawlenty (if I could stay awake), but otherwise the field is not strong at all. Romney is not philosophically reliable and the Left can very easily savage Mormonism (it is far more easily painted as a dangerous and whacky cult than Roman Catholicism was for JFK in 1960). Huntsman is a Democrat pretending to be a Republican. The rest are wasting their time and ours.
Rick Perry & Herman Cain
Save America & End The Pain
IMHO, YMMV ...