Martha Raddatz Enters A New Battlefield: The Vice Presidential Debate Stage

NEW YORK -- On Monday afternoon, ABC News' Martha Raddatz took a break from preparing to moderate this week's vice presidential debate to tweet a photo of herself recently aboard a fighter jet. That flight, she wrote, "was good warmup" for steering the debate between Vice President Joe Biden and Rep. Paul Ryan (R-Wis.). But while a fighter pilot took the reins during that trip, Raddatz be flying solo Thursday, assuming the moderator seat just a week after PBS veteran Jim Lehrer took heavy fire f...