Here is something from Fox news:
“The 2012 vice presidential debate was sometimes a 2-on-1 fight, with Biden and moderator Martha Raddatz both interrupting Republican vice presidential nominee Paul Ryan repeatedly. … Raddatz took a liberal tack . . . and let Biden control the debate tone by never shutting up. …
[Her performance] was far from excellent. When Ryan pushed the point about useless government pork spent on green jobs, Raddatz interrupted him just as he was asking Biden about the alleged 5 million green jobs the administration had vowed to create.”