In the 2006 gubernatorial elections, incumbent Democrats face the toughest challenges in such states as:
- Illinois: Gov. Rod Blagojevich (D) is running against Judy Baar Topinka (R) and the polls are pretty tight, with a slight advantage to Blagojevich.
- Maine: Gov. John Baldacci (D) is below 50 percent in most polls, which is always a bad sign for an incumbent, especially in a state who likes to elect Independents.
- Michigan: Gov. Jennifer Granholm (D), former darling of the Democratic Party is now surprisingly vulnerable to the GOP’s Dick DeVos.
- Oregon: Gov. Ted Kulongoski (D) is not very popular and is now in a close contest with Republican Ron Saxton.
- Pennsylvania: Gov. Ed Rendell's (D) is vulnerable against GOP's former NFL star Lynn Swann.
- Wisconsin: Gov. Jim Doyle (D) is in a virtually tied race with GOP Congressman Mark Green.