Vice President Joe Biden bites his lip while speaking to students faculty and staff at Harvard University's Kennedy School of Government in Cambridge, Mass. Thursday, Oct. 2, 2014. (AP Photo/Winslow Townson)
Featured Photo Galleries
Vice President Joe Biden bites his lip while speaking to students faculty and staff at Harvard University's Kennedy School of Government in Cambridge, Mass. Thursday, Oct. 2, 2014. (AP Photo/Winslow Townson)
