You are so right about Bachmann KO’ing Romney, although I personally don’t see him as a truly substantial obstacle.
Romney couldn’t win the nomination BEFORE the Tea Party Movement — Hell’s Bells, he couldn’t beat MCCAIN for the nomination in 2008 (and there certainly was no great love for McCain) — who in the world thinks Romney would magically be MORE popular in 2011/12, after 3+ years of Obama and the Tea Party movement in full swing?
Since the Democrats already have their nominee I expect to see a lot of crossover (Dems voting in Repub primary) in the Republican primaries. I am not sure who they think they can best defeat but I think it will be either Romney or Huntsman. After that, to win they will depend on their normal election fraud and our staying home or voting third party in rebellion.