03/28/2008 02:45 am ET Updated May 25, 2011

Obama, Edwards Throw Final Punches Before Christmas Ceasefire

Sen. Barack Obama (D-Ill.) and former North Carolina Sen. John Edwards traded unexpectedly bitter attacks Saturday over plans by a group linked to Edwards to air television advertising on his behalf.

Obama accused his rival for the Democratic nomination of hypocrisy after a labor-backed group known as a 527 prepared to launch pro-Edwards television advertising across Iowa.

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