A lot of people don’t particularly like Romney.
You’re only crazy if you ignore what Obama has done and will continue to do to this country.
You’re only crazy if you refuse to vote for Romney because you don’t like him and therefore are willing to condemn our country to four more years of a man who wants to destroy it and will probably do so if given another term.
Until that time he can be spoken of as just another common politician trying to pull the wool over the public's eyes.
There are a number of possibilities here ~
(1) He could pull out using family problems as an excuse,
(2) He could be found to have been convicted of aggravated mopery in the recent past,
(3) He could have a heart attack (he's in that age range BTW),
(4) He could have a stroke ~ maybe just a small one like may have happened to McCain (about when he stopped campaigning),
(5) He could get smart and realize he has such a great chance of not winning it will be HIM who puts Obama into office for another term,
(6) ...... any number of other things.
He ain't the party nominee yet. He doesn't need to be the nominee. He has nothing to add to the national discourse.