More fact-twisting from Rudy via factcheck.org:

Rudy Giuliani's latest TV ad falsely claims New York City experienced "record crime ... until Rudy." In fact, the city recorded its highest rates of both violent crime and property crime years before he took office. The downward trend was well established before he was sworn in.

The ad also claims New York is "America's most liberal city," but his campaign offers no evidence showing that the city is more liberal than, say, San Francisco; Berkeley; Washington, D.C.; or Detroit, all of which rank as more liberal in a study of voting behavior in the 2004 elections. In that study, New York ranked 21st among cities with populations of more than 100,000.

Giuliani's ad also repeats some boasts we've found to be misleading in the past. It claims he cut taxes by $9 billion but counts several tax cuts that he didn't initiate or sign, and one that he lobbied against before changing course. It also boasts that he cut welfare rolls by 60 percent but fails to note that the reduction in New York was a bit less than it was for the nation as a whole.