Question: Kweisi Mfume lost a primary campaign for the United States Senate seat that was being vacated by which American politician and attorney?
Sentence (from "Kweisi Mfume"): Kweisi Mfume (born Frizzell Gerald Gray; October 24, 1948) is an American politician and the former President/CEO of the National Association for the Advancement of Colored People (NAACP), as well as a five-term Democratic Congressman from Maryland's 7th congressional district, serving in the 100th through 104th Congress.
Relevant evidence: No