Similarly, the Democratic caucus offered a mild rebuke of Sen. Joe Lieberman (I-Conn.) for his endorsement of Sen. John McCain (R-Ariz.) in the 2008 presidential election.
Lieberman took the extraordinary step of speaking in support of McCain - one of his closest friends - at the 2008 Republican National Convention.
Despite that, Senate Democrats agreed to a deal brokered by Majority Leader Harry Reid (Nev.), under which Lieberman gave up a seat on the Environment and Public Works Committee but held onto his gavel of the Homeland Security and Governmental Affairs Committee. At the time, one Democratic Senator called that arrangement "basically a plea bargain."
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.