Rick Santorum hopes he's on the brink of a comeback.
For two weeks the former senator has focused on Colorado, Minnesota and Missouri.
Where today's primary voting is underway.
Santorum's Catholic social conservatism helped him win Iowa, and now he has a perfect issue: the new rule by the Department of Health and Human Services requiring religiously affiliated employers like Catholic colleges and hospitals to pay for birth control as part of health care coverage.
GOP frontrunner Mitt Romney jumped in on the issue as well, telling supporters "this kind of assault on religion will end if I'm President of the United States."
Newt Gingrich accused his rival of hypocrisy.
"The fact is Governor Romney insisted Catholic hospitals give out abortion pills against their religious belief when he was governor," he claimed.
Team Obama, meanwhile, worked on damage control on the issue.
"We're going to continue to work with religious groups to try to allay their concerns as we implement a policy that provides this coverage to women across the country," White House Press Secretary Jay Carney said.
Tonight's results could be a sign of things to come as the candidates head toward Super Tuesday.