Campaign update: Grassley's challenge, Vitter's primary?

Former Notre Dame football coach Lou Holtz will campaign for Bob McDonnell (R) tonight in Richmond, Va.

Louisiana Secretary of State Jay Dardenne says he is still mulling a primary with Sen. David Vitter (R-La.).

Former gubernatorial candidate Roxanne Conlin (D) calls herself a “long shot” against Sen. Charles Grassley (R-Iowa), but she’s considered among the best candidates Democrats could have hoped for.

Is the White House wading into the open primary for Wisconsin governor?

President Obama raised $1 million for Sen. Chris Dodd (D-Conn.). 

Biden raises money for Ohio Reps. Zack Space and John Boccieri. 

The first televised debate of the Massachusetts special election is set for tonight. Can anyone land anything that will stick on frontrunner Martha Coakley?

Rudy Giuliani (R) questions whether running for governor of New York is worth it.