The race is likely to narrow to two as primaries and caucuses force the also-rans out.
Right now it looks like Romney and Cain or Romney and Perry.
Perry has a desperate need to derail Cain.
No, it’ll be either Romney and Cain or Romney and Gingrich. Cain has surged in the polls and Newt’s been making steady progress. Perry is a non-factor. He’s polling lower than Newt in almost every survey I’ve seen.