Van Hollen talks preparations for playing Ryan in debate prep

Van Hollen added that they have not yet actually started practice yet, although he's "had a meeting with the vice president."

"We'll kick into higher gear in a little bit," Van Hollen said.

In response to a question of who Van Hollen thought would play Biden in Ryan's debate prep, Van Hollen said he wasn't "going there."

The vice presidential debate is set for Oct. 11 at Centre College located in Danville, Ky. 

Sen. John Kerry (D-Mass.) is playing Mitt Romney in President Obama's debate practice, and Sen. Rob Portman (R-Ohio) is playing Obama in Romney's practice sessions.

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