Santorum has revealed himself to be no better than Gingrich, an opportunist troll, and a dishonest individual unfit for the presidency, or any form of public service. A convention fight would completely destroy the GOP, which is already facing an uphill climb, and Santorum seems to not care.
The person who has immeasurable harmed the Republican chances to beat Obama is Romney. First, was the vicious, negative nature of his campaign. And, second, was the fact that he is Mitt Romney.
Um, Romney gave Rick Santorum's Presidential campaign the maximum amount in 2006. Romney, later, denounced Santorum as being part of the problem. If Santorum and Romney don't really have any "major policy differences," then why shouldn't we conclude that Romney will be as much a part of the problem as he accuses Santorum?
Here is a difference between the "major policies" advocated by Romney and Santorum: Santorum means its, while Romney's position are as fleetings as the diagrams on an Etch-A-Sketch.