April 28, 2007 -- Rudy Giuliani's stormy personal life will be a "serious" liability in his campaign for president, Democratic National Committee boss Howard Dean charged yesterday. "His personal life is a serious problem for him," Dean said in a CNN interview, adding that Giuliani "has a lot of character issues." Dean's attack comes days after Giuliani claimed that the Democratic presidential hopefuls are surrendering in the war on Iraq and that America would be safer under a GOP president.