Kathleen Sebelius
governor of Kansas

One of the nation's most popular governors, Sebelius is known for coalition building and working across the aisle.

She took on the coal industry by blocking new coal-fired power plants in Kansas, citing global-warming concerns. Big Coal slapped back, comparing her to Vladimir Putin, Hugo Chavez, and Mahmoud Ahmadinejad.

Upside | The Kansan alternative-energy promoter could bill herself as the wizard of windmills ... and make "Over the Rainbow" her campaign theme.

Downside | Washington isn't Kansas, Toto.