Vice President Joseph R. Biden (left) listens as President Obama gestures as he talks about the "fiscal cliff" negotiations during a news conference in the briefing room of the White House on Wednesday, Dec. 19, 2012, in Washington. Mr. Obama also announced that Mr. Biden will lead an administrationwide effort to curb gun violence in response to the Connecticut school shootings. (AP Photo/Evan Vucci)

Photo by: Evan Vucci

Vice President Joseph R. Biden (left) listens as President Obama gestures as he talks about the "fiscal cliff" negotiations during a news conference in the briefing room of the White House on Wednesday, Dec. 19, 2012, in Washington. Mr. Obama also announced that Mr. Biden will lead an administrationwide effort to curb gun violence in response to the Connecticut school shootings. (AP Photo/Evan Vucci)