Question: Thomas W. Hayes filled the vacancy created by the August 4, 1987 death of a Democrat also known as what?
Sentence (from "Jesse M. Unruh"): Jesse Marvin Unruh (September 30, 1922 – August 4, 1987), also known as Big Daddy Unruh, was a well-known American Democratic politician and the California State Treasurer.
Relevant evidence: Yes