The good news is that Romney simply cannot crack the 25-30% range, no matter who his opponents are. There is a risk though that the conservatives will split their votes. However unlike 2008, a lot more states are proportional rather than "winner takes all". People always say there could be a "brokered convention", and it never happens, but this time it really could.
You've got it. Romney has the country-club clique cornered, but that's not enough. The Pubblie Party hacks could see that, so they sought another candidate who could fake conservative credentials...Slick Rick Perry! Unfortunately Perry couldn't fool enough people, and the hacks couldn't get fatso Christie to run. They are panicked at the thought that the real majority--the conservative base plus the millions of fiscally conservative independents--might nominate someone like Cain, Palin, or Bachmann. It's the end of their world. Tough shiite, country-clubbers.