AP Photo/Susan Walsh
Vice President Joe Biden smiles as he makes a call on the cell phone of Costco employee Ivey Stewart, left, after shopping at the a Costco store in Washington, Nov. 29, 2012. Biden went shopping for presents and to highlight the importance of renewing middle-class tax cuts so families and businesses have more certainty at this critical time for our economy.
AP Photo/Susan Walsh
Vice President Joe Biden, standing next to Costco co-founder Jim Sinegal, poses for a photo and shows his Costco membership card as he arrived to shop at the new Costco store in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden tries on a watch while shopping at a Costco in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden looks over a selection of items in the bakery section while shopping at a Costco in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden shakes hands with Costco CEO Craig Jelinek, right, as co-founder Jim Sinegal watches at center, after Biden arrived to shop at the new Costco store in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden pushes his cart after shopping at Costco in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden looks over a selection of books while shopping at a Costco in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden reacts after being asked to sample food from the bakery section while shopping at a Costco in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden samples food while shopping at a Costco in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden gestures as he talks to reporters as he pushes his cart after shopping at Costco in Washington, Nov. 29, 2012.
AP Photo/Susan Walsh
Vice President Joe Biden talks with Costco employees in the bakery section of the store while shopping at Costco in Washington, Nov. 29, 2012.