Pushing for last minute support, Rick Santorum met with supporters in Delta Township Monday.
Hundreds of people packed in to the Lexington Lansing Hotel to listen to the former Pennsylvania senator.
Santorum's speech focused on the need for a return to economic prosperity and a President to reduce government and put his trust in the American people.
"You have the chance to be an inflection point in this race," he told the crowd of supporters. "Don't miss the opportunity to stand up to those who say we can't really elect someone who's too conservative, we need to appeal to moderate voters. They said the same thing about Ronald Reagan."
While most of the talk focused on President Obama, Santorum also tried to separate himself from Republican challenger Mitt Romney, painting the former Massachusetts governor as too moderate and out of touch with Michigan's blue collar workers.
"Michigan you have the opportunity to stop the joke, to tell the truth about who the real conservative is," Santorum said.
Michigan is Romney's home state, but no longer a guaranteed win.
Where Romney has at times struggled to connect with the Michigan's working class, Santorum appears comfortable.
"The fact that he does his own taxes resonates with me," Steve Hadin of Lansing said. "I'm definitely in favor of his talking about social issues. I think one of the fundamental principals of our country is the foundation of the family and if we lose that we're in big trouble."
Santorum slammed Romney for opposing the GM and Chrysler bailouts while supporting help for Wall Street.
He also played up his own Catholic faith, saying he's not afraid to talk about good and evil, right and wrong.
A win in Michigan Tuesday would cement Romney's status as the frontrunner for the nomination, but after a mid-February surge from Santorum, recent polls show the state could go either way.
Santorum's campaign hasn't been able to match Romney's fundraising and infrastructure, but Santorum says he can win.
Eluding to Romney, he told the crowd money and negative ads won't be enough to win in the general election. He says it will take a candidate with vision.
Voters will decide on Tuesday who that candidate is.