Conversation so far:
Did Rudy Giuliani hold a political position when he was running for senate in 2000?
Rudy Giuliani was mayor at the time he began his 2000 Senate campaign.
Was Rudy Giuliani still mayor when he was running for Senate in the 2000 campaign?
Rudy Giuliani was mayor at the time he began his 2000 Senate campaign.
Who was Rudy Giuliani's Democratic opponent for the 2000 race for Senate?
Democratic Congressman Charles Rangel and others recruited then-U.S. First Lady Hillary Clinton to run for Moynihan's seat, hoping she might combat Giuliani's star power.
How was Hilary Clinton received by the public at the time of the 2000 Senate campaign?
By April 2000, reports showed Clinton gaining upstate and generally outworking Giuliani.

Question: What was a major topic that was discussed by the candidates during the campaign?
Self-contained rewrite: What was a major topic that was discussed by Rudy Giuliani and Hilary Clinton during the 2000 Senate campaign?