At the end of the Republican presidential debate in New Hampshire this month, when the Democrats joined the candidates on stage, Mitt Romney found himself momentarily alone as his counterparts mingled, looking around a bit stiffly for a companion.
The moment was emblematic of a broader reality that has helped shape the Republican contest and could take center stage again on Thursday at a debate in Florida. Within the small circle of contenders, Mr. Romney has become the most disliked.
“Never get into a wrestling match with a pig,” Senator John McCain said in New Hampshire this month after reporters asked him about Mr. Romney. “You both get dirty, and the pig likes it.”

i love mccain (for a republican)
http://www.nytimes.com/2008/01/24/us/politics/24romney.html?ex=1358917200&en=b97ae9dacf01a160&ei=5124&partner=permalink&exprod=permalink