"Take that boy down"

Here's a promo running on XM 169 and 1450 WOL for Al Sharpton's radio show.

Guest Ralph Nader is quoted as saying that a Clinton aide said about Barack Obama, "...and a source close to the Clintons said 'they're gonna take that boy down,' the Clintons, taking Obama down."

You can download the short clip here.

Has Nader said this anywhere else? Or only to a black audience?