Michigan: Referendum on Romney

The most important contest of the Republican nomination battle is a day away, with the fight for Michigan seen as pivotal in determining the party’s nominee.

For the two leading contenders, Mitt Romney and Rick Santorum, the stakes could not be higher. If Romney were to win Michigan convincingly — and attain a victory in Arizona, which also votes on Tuesday and where he is favored — he will have cleared perhaps the last real hurdle to clinching the nomination. 

The Hill's Niall Stanage discusses the dynamics of the GOP race ahead of Michigan's crucial primary.

Read more from The Hill.