In 1985, Schwarzenegger appeared in "Stop the Madness", an anti-drug music video sponsored by the Reagan administration. He first came to wide public notice as a Republican during the 1988 presidential election, accompanying then-Vice President George H.W. Bush at a campaign rally.
Which candidate did Schwarzenegger appear with at a presidential campaign rally? (If the question is unanswerable, say "unanswerable")
George H.W. Bush