Bachmann announced that she is considering stepping in a month early. (May)
There is a wellspring of support suddenly coming in to her campaign office in money and bodies, she just had a secret meeting with Huck, (Perhaps he will endorse her and give her the money he has taken in, etc,,) but more importantly, Bachmann is a solid candidate with a solid background.
She only lacks name recognition right now which will change very soon, according to media sources.
If Sarah doesn't run, I like Bachmann/Cain in some configuration.