Talk about getting into character.
Rep. Chris Van Hollen, D-Md., and Sen. Rob Portman, R-Ohio, ran into each other on a CNN set at the convention Wednesday.
Van Hollen greeted Portman as "Mr. President."
Van Hollen is playing the role of Rep. Paul Ryan for the Democrats as Vice President Joe Biden prepares for the vice presidential debate.
Portman is playing President Barack Obama for the Republicans as Mitt Romney prepares for the presidential debates.
— Nancy Benac — Twitter http://twitter.com/nbenac
EDITOR'S NOTE — Convention Watch shows you the 2012 political conventions through the eyes of Associated Press journalists. Follow them on Twitter where available with the handles listed after each item.