CNN has the video:

Former New York City Mayor Rudy Giuliani once said that a flat income tax "would be a terrible mistake for urban areas," but the presidential hopeful now is open to the idea.

Giuliani made his critical comments about the flat tax during an appearance on CNN's Capital Gang in 1996, the same year when its biggest cheerleader, Steve Forbes, was seeking the GOP presidential nomination. Forbes, the editor-in-chief of the magazine that bears his name, endorsed the former mayor this week and will serve as a senior policy advisor and national co-chair of the campaign.

When asked about the flat tax this week, Giuliani said that if the nation was back at the point where the income tax was being structured then it "would make a ... lot of sense.

And the floppin' keeps on coming...