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 "John Y. Brown Sr."): He was a state representative for nearly three decades, serving one term as speaker of the Kentucky House of Representatives and as majority floor leader during the term of Governor Edward T. Breathitt.
Relevant evidence: No