Sen. Mark S. Kirk waves to the dozens of members of Congress who lined the Capitol steps to watch him make his way to the chamber for the first time in nearly a year. The Illinois Republican, assisted by Democratic Sens. Joe Manchin III of West Virginia, left, and Richard J. Durbin of Illinois, has been in rehabilitation since suffering a stroke in January 2012.
Vice President Joe Biden waits to conduct a mock swearing-in ceremony with Sen. Brian Schatz, D-Hawaii, in the Capitol's Old Senate Chamber, December 2, 2014. Schatz was sworn in to serve the remainder of his term since he was appointed to the seat after Sen. Daniel Inouye, D-Hawaii, passed away.