The latest polls show Mitt Romney's momentum has stopped in his home state of Michigan, where he has been chipping away at Rick Santorum's lead in the polls over the past week.
The conventional wisdom is that if Romney can't win the state he won four years ago, the nomination will be a long, drawn-out battle with Santorum, perhaps until the party's nominating convention this summer.
Bill Ballenger, editor of the newsletter Inside Michigan Politics, says "it's gonna be a real dogfight" Tuesday.
- Bill Ballenger, editor of the newsletter Inside Michigan Politics
This segment aired on February 27, 2012.