RedState has it right:
It is a mathematical improbability that Rick Santorum will get to the magic number of 1,144 — the number of delegates needed to be the Republican Presidential nominee. It is a political improbability that Rick Santorum will stop Mitt Romney from getting to 1,144.
Last night in Illinois, Mitt Romney won his first victory without caveats.
Even in Florida, a big win, there were plenty — counties that saw increased turnout rejected him. The northern part of the state rejected him. It required an amalgamation of voters not quite typical of the base to get Romney the nod in Florida.
In Illinois, Romney won. Period. The Santorum campaign stumbled badly in Puerto Rico, gave up a lead in Illinois, and the candidate proved horribly undisciplined. Like Dug the dog in Up getting distracted by every random squirrel, Rick Santorum loses all ability to focus when social issues come up....
Theoretically, Rick Santorum could keep Romney from getting to 1,144. But as Romney piles up more and more wins and neither the Gingrich nor Paul campaigns remain factors, let alone have pulses, the inevitable will set in. Conservatives may not really like Mitt Romney, but they do not want a fractured party too divided to beat Barack Obama. There will be no white knight, no dark horse, and no brokered convention. We have our nominee.
I've already stated my apathy towards the current crop of candidates, though I haven't had the energy to outline exactly the reasons behind my apathy. (When you are apathetic, that's often the way it goes.)
Of the four still standing in the GOP race, Romney is probably the easiest for me to put up with, and that will have to be enough. I'm certainly not interested in looking at the others and pretending they are someone they are not. There exists a smart and intellectually rigorous form of conservatism, but it isn't represented in this race. Instead we have a choice between a wonkish bureaucrat, an economic ideologue, a 1950's style moralizing church lady, and a consummate creature of Washington.
I ain't excited about it, but I'll put up with the wonkish bureaucrat.