Question: Who made an unsuccessful bid to fill the US Senate seat vacated by the Senate Majority Leader from 2003 to 2007?
Sentence (from "Harold Ford Jr."): Harold Eugene Ford Jr. (born May 11, 1970) is an American politician and author who served five terms in the United States House of Representatives as a member of the Democratic Party from  's 9 congressional district , centered in Memphis, from 1997 to 2007.
Relevant evidence: Yes