With yet another setback, Romney increases his delegate lead over opponents:
That's been the story for weeks.
He will be in trouble if Santorum gets to be the non-Romney. Also, don't be surprised to see Republican poo-bahs warming up to Santorum. He has improved significantly as a campaigner and as a result, the elite/establishment opinion might think he wouldn't be a complete disaster as the nominee - a position they currently hold. Or contrarywise, they might see Romney has demonstrated how weak he is by barely beating, or losing to, Santorum despite spending ten times as much.
Who's going to win the California primary? Romney. Who's going to win the New York primary? Romney.
The Republican elite are not warming up to Santorum. They're scared to death he'll actually be the nominee, because they know Obama will destroy him.
The Republican base isn't warming up to Romney yet, and considering that McCain had sewn the GOP nomination up on Super Tuesday in 2008 it's a good thing Romney has lots of money and the best organization. So Romney will probably prevail but he's definitely going to be damaged goods in the general election, unlike Obama in 2008 even with the long contest that year on the Democratic side. Romney is polished enough and has the advantage of not actually being crazy like Santorum or loathsome like Gingrich, but he won't be able to overcome the Achilles heel of RomneyCare.
The media keeps pushing the point that Santorum can't catch Romney in delegates. He does have to nor does Gingrich for that matter. They just have to keep Romney from getting to the magic number (something like 1100, I think). If Romney can't win the nomination at the convention, it throws it all open and then it won't matter how much money he has. This is the Gingrich strategy.