The 2010 race for Michigan governor is a toss-up, according to a new MRG/Inside Michigan Politics poll (March 4-10, 600 RV, MoE +/- 4.1%), with incumbent Jennifer Granholm (D) term-limited.

Granholm enjoyed a 14-point re-election victory in 2006, and Obama defeated McCain in the state by 16 points in 2008. However, the leading Democratic candidate trailed all three GOP candidates tested in hypothetical general election matchups.

Dem Primary
Lt. Governor John Cherry (26%) leads, followed by Michigan First Gentleman Daniel Granholm-Mulhern (10%), Michigan State University Trustee George Perles (4%) and House Speaker Andy Dillon (3%). Undecided voters account for 57%.

GOP Primary
Oakland County Executive Brooks Patterson (22%) leads, followed by Rep. Pete Hoekstra (17%), Attorney General Mike Cox (15%), Secretary of State Terri Lynn Land (12%), and State Senator Tom George (2%). Undecided voters accounted for 32%.

General Election
Cox (R) 41 - Cherry (D) 34
Patterson (R) 38 - Cherry (D) 34
Land (R) 39 - Cherry (D) 34