In December 2008, Kennedy expressed interest in the United States Senate seat occupied by Hillary Clinton, who had been selected to become Secretary of State. This seat was to be filled through 2010 by appointment of New York Governor David Paterson. This same seat was held by Kennedy's uncle Robert F. Kennedy from January 1965 until his assassination in June 1968, when he was a candidate for the Democratic presidential nomination. Kennedy's appointment was supported by Congresswoman Louise Slaughter, State Assemblyman Vito Lopez, New York City mayor Michael Bloomberg, former New York City Mayor Ed Koch, and the "New York Post" editorial page.