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Wolf Blitzer talks to former Rep. Artur Davis, a speaker at the RNC, about why he left the Democratic party.
(CNN) â€“ Artur Davis, the former four-term Democratic congressman from Alabama, said Wednesday that Vice President Joe Biden was propagating "racial viciousness" when he said Mitt Romney's regulatory policies would "put y'all back in chains."
Biden made the comments Tuesday to a predominantly black crowd in Danville, Virginia, a city with a long history of racial tension. In May Davis announced he was switching to the GOP, leaving the door open to a future political bid as a Republican.