NOVI -- A sigh of relief for the presumed front-runner in this race.
"We didn't win by a lot, but we won by enough, and that's all that counts," said GOP presidential candidate Mitt Romney at his Novi celebration event.
After trailing in the polls in Michigan two weeks ago, he narrowly edged Rick Santorum 41-38 in the Tuesday primary.
He credits that to re-focusing his campaign on the economy.
"I'm gonna deliver on more jobs, less debt and smaller government," he told his supporters in Novi after receiving a concession call from Santorum. "We're gonna hear that every day."
It capped off a furious race in which Romney spent many millions bashing Santorum over the airwaves.
He also criticized the former Pennsylvania senator Tuesday for robo-calls that asked democrats to vote against Romney.
But in Tuesday night's speech, Romney turned his attention back to President Obama.
"He thinks he deserves a second term," Romney said. "He says 'We can't wait,' to which I say, 'Oh, yes we can.'"
Romney supporters here in Novi, including Gov. Snyder and Attorney General Bill Schuette, told News 10 they're not concerned that he narrowly won the state where he was born.
"Michigan's a very diverse, competitive state," Snyder said. "If you look at where he started in the polls, he was much farther back, and when he got a chance to campaign here, and people heard about his message -- he's about jobs and our kids' future -- he's doing well."
But most political experts say Romney remains vulnerable.
A new Washington Post/ABC News poll out Tuesday shows the former Massachusetts governor is trailing Santorum nationally among hard-line conservatives.
That'll need to change ahead of the Washington caucuses on Saturday, where Santorum currently leads in the polls, and in the 10 contests scheduled for Super Tuesday.