Question: When did the Democratic senator in the United States vice-presidential debate of 1976 run for presidential election?
Sentence (from "United States vice-presidential debate, 1992"): The participants were Democratic nominee, Bill Clinton's running mate, U.S. Senator Al Gore from Tennessee; Ross Perot's running mate, retired Vice Admiral James Stockdale; and Republican candidate, incumbent Vice President Dan Quayle.
Relevant evidence: No