Giuliani targets 'tax-and-spend' Democrats in ad

Rudy Giuliani faces a long haul to lock up the Republican presidential nomination.

But you wouldn't know it from his new radio ad in Iowa, where he trails Mitt Romney in the polls.

The ad takes direct aim at his possible Democratic opponents, especially front-runner and fellow New Yorker Hillary Clinton, though it doesn't name her.

"Democrats want to move in the direction of much bigger government, socialized medicine, increasing government regulation, much higher taxes," Giuliani says in the ad. "They are making the promise to raise taxes, the only thing I can tell you in addition to that is that they'll raise taxes even more then they promised. They want to take more of the people's money."

In recent days, Giuliani has ridiculed Clinton's idea for a $5,000 "baby bond" to help families save for college and a first house and criticized her proposal on Tuesday to give federal matching money for retirement accounts as costly boondoggles.

In the ad, Giuliani plugs his record on cutting taxes and spending as mayor of New York. "I have no question that I can the same thing for Washington that I did for New York City," he concludes.