If you're not taking him seriously, I suggest you start.
Sure, Romney's ahead in the delegate count - but there's a long way to go to get to 1,144... but if you're counting on Newt to keep nipping at Santorum's heels, he just showed how ineffectual that strategy is. Newt had planned on sweeping the South. Santorum sold a better product, and twice as much Jesus, and took the cheesy grits out of Newt's mouth.
And don't think it wasn't noticed by Team Ricky. On Glenn Beck's show he said, "It would be great if he [Newt] would get out of the race, because clearly the vast majority of the votes that he is taking are coming from me."
How long until Gingrich's bankroller Sheldon Adelson decides to quit throwing good money after bad?
How long til the GOP decides that a Romney/Santorum ticket is a one-two TKO for Obama on November 2nd, no matter where the price of gas or unemployment number stands?
And suddenly, Ricky is a heartbeat or a scandal away from the Oval Office...
If you don't take that seriously, I suggest, once more, that you start.