Obama and Romney each took 47 percent support in the poll of likely voters. The poll could be an outlier, as most other recent Michigan polls shows Obama with a lead. 

The president has a 4-point advantage over Romney in Michigan, according to the RealClearPolitics average of polls.

Despite Romney’s recent surge in the polls, Democrats remain optimistic that Obama will hold on to three swing states in the Midwest and Rust Belt — Michigan, Wisconsin and Pennsylvania.

Those states have trended Democratic in recent elections.

The survey of 1,122 likely voters has a 3 percent margin of error.