Question: What American politician, who was the first formally designated floor leader in the United States Senate, lived at 2000 G Street in Washington, D.C. from 1914 to 1925?
Sentence (from "Jim Tracy (politician)"): He is currently the Assistant Floor Leader of the Senate Republican Caucus, the Chair of the Senate Transportation Committee, and a member of the Senate Education Committee and the Senate State and Local Government Committee.
Relevant evidence: No