You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Arnold_Schwarzenegger

Context:
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.

Question:
Which candidate did Schwarzenegger appear with at a presidential campaign rally?

George H.W. Bush