Nightline Anchor Terry Moran reports:
At Andrews AFB boarding a flight to Des Moines, VP Biden doubled down on his allegations that the Chamber of Commerce is using foreign money to fund its political operations–even after a Chamber spokesman said that "not one cent" of foreign cash has gone to political ads.
"Show me," Biden said. "Republicans used to be for transparency. Show me."
When asked whether he thinks the chamber is lying, Biden said, "I'm not taking their word for it."
As for the Chamber's claim the foreign money is segregated: "there's a word they know: fungible."
It's clear the veep is going to keep up this line of attack, which has been criticized by some Democrats as off-message and factually infirm.
I'll be spending the day wit Biden. Watch more on Nightline tonight.