Question: La Casa Pacifica was a mansion that was used by the President who was a Senator from what state?
Sentence (from "Richard Nixon"): Richard Milhous Nixon (January 9, 1913 – April 22, 1994) was the 37th President of the United States from 1969 until 1974, when he resigned from office, the only U.S. president to do so.
Relevant evidence: No