Romney is launching a new ad in New Hampshire pledging not to raise taxes.
WASHINGTON (CNN) - A day after Republican presidential candidate Mitt Romney sharply criticized rival Rudy Giuliani for seeking to uphold a commuter tax when he was mayor of New York City, the former Massachusetts governor launched a new radio ad in New Hampshire touting his commitment to a no-new-tax pledge.
"For years, conservative candidates for president signed their name on the dotted line, pledging to oppose tax increases," Romney says in the ad that's set to hit airwaves in the crucial primary state Friday. "I'm proud to be the only major candidate for president to sign the tax pledge. The others have not.
"We've got to get taxes down. And grow our economy," Romney adds. "I believe it's not fair that you have to pay taxes when you earn your money, when you save your money and when you die."
The ad follows a day of back-and-forth between the Romney campaign and the Giuliani campaign over the former mayor's support of a commuter tax on visitors to New York City and over Giuliani's opposition in 1997 to the use of a line item veto.
Speaking on behalf of Giuliani in a conference call with reporters Thursday, former Massachusetts Gov. Paul Cellucci said Romney's criticisms were a move of "desperation," and noted Giuliani has said he supports the line item veto as one of his "12 commitments"
And Friday morning, Steve Forbes, national co-chair of Giuliani’s campaign, also defended the former New York City mayor.
"Results speak louder than rhetoric – that's why Rudy Giuliani's record of cutting taxes and slashing government spending makes him the true fiscal conservative in the race," Forbes said in a statement released by Giuliani’s campaign.
– CNN Ticker Producer Alexander Mooney