I think that there is still a slight chance for Romney to shut the process down.
He wins IL big. He goes into LA and gets a plurality of the delegates. I thing at that point, it is game over for Santorum, so I don't really blame him for going to LA.
Basically, if Santorum loses both LA and WI, he is finished. He should suspend after a symbolic victory in PA (like Simon in 1988).
And if Santorum wins in IL, will Romney suspend?
Romney has a big delegate lead (as well as a huge lead in the popular vote).
