As a general rule:
AG = Aspiring Governor
In Virginia, I think that Attorney General Herring could suceed McAuliffe in the Governor's Mansion, but he will probably have a long slog against the Republican nominee.
AG Kamala Harris probably has a good chance at becoming Governor of California
AG Pam Bondi could become Governor of Florida, but the Republicans do have a fairly deep bench here, given that there are so many Republican congressmen and mayors who might want to run in a gubernatorial election.
AG Lisa Madigan might become Governor of Illinois, especially if Rauner (R) defeats Gov. Quinn, which would make this race a prime Democratic target in 2018.
AG Catherine Cortez Masto is probably going to run for Governor after Sandoval leaves office in Nevada.
AG Kathleen Kane is probably a good candidate for Governor of Pennsylvania in the future, but her chance might be a while from now, especially if a Democrat defeats Gov. Corbett this year and remains in office for two terms.
Of course, AG's Abbott (R-TX), Coakley (D-MA), and Beau Biden (D-DE) will probably end up as Governors very soon.
It's highly conceivable that Jack Conway (D-KY) could end up in the governor's throne. Not a guarantee, but certainly possible.
