Romney has won 54 percent of delegates at stake. Santorum follows with 27 percent.
Read more...Romney has George H.W.'s nod... But no sign of George W.
Read more...Former Pennsylvania senator still far behind Mitt Romney despite latest success.
Read more...Why California's 150 delegates could be huge in the Republican GOP race.
Read more...Finally a strong victory for the frontrunner.
Read more...Polls show Mitt Romney to be the frontrunner in Tuesday’s Republican Primary in Illinois.
Read more...GOP candidate appeared on Fox News Sunday ahead of Tuesday's Illinois primary.
Read more...Gov. Robert Bentley voted for Santorum in Tuesday's primary
Read more...Polls are "too close to call," but Gingrich remains deep in the mix for Alabama and Mississippi as well.
Read more...Santorum predicted the race would come down to two people.
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