Mitt Romney is making up ground on Rick Santorum in the Wolverine State thanks to Gingrich's presence in the race, according to the latest Public Policy Polling (PPP) survey (released 2/19/12). Key PPP statistic: 36% of voters say they could change their minds in the next week. 69% of Romney's supporters are strongly committed to him, compared to only 63% of Santorum's backers.
The Republican race for President in Michigan has tightened considerably over the last week, with what was a 15 point lead for Rick Santorum down to 4. [Santorum] leads with 37% to 33% for Mitt Romney, 15% for Ron Paul, and 10% for Newt Gingrich.
The tightening over the last week is much more a function of Romney gaining than Santorum falling.
What we're seeing in Michigan is a very different story from Florida where Romney surged by effectively destroying his opponent's image- here Romney's gains have more to do with building himself up.
Groups Santorum has double digit leads with include Protestants (up 47-30), union members (up 43-23), Evangelicals (up 51-24), Tea Partiers (up 55-20), 'very conservative' voters (up 54-23), and men (up 40-28).
Romney is leading the field with women (38-34), seniors (42-34), moderates (35-24), 'somewhat conservative' voters (40-34), and Catholics (43-31).

