Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
CNN's Candy Crowley talks to a Mitt Romney's campaign adviser about President Obama and a possible VP pick.
RELATED STORY: Sununu: White House 'numb and dumb' on jobs report
Irwin, Pennsylvania (CNN) – Mitt Romney's national campaign co-chair John Sununu apologized Tuesday afternoon for saying he wished President Barack Obama would "learn how to be an American" earlier in the day.
Appearing on CNN's "The Situation Room with Wolf Blitzer," Sununu said he regretted using those words on a campaign conference call.