Rudy Giuliani remains the most popular presidential hopeful for Republican Party sympathizers in the United States, according to a poll by Opinion Dynamics released by Fox News. 30 per cent of respondents would vote for the former New York City mayor in a 2008 primary. Arizona senator John McCain is second with 23 per cent, followed by former House of Representatives speaker Newt Gingrich with nine per cent, and Massachusetts governor Mitt Romney with eight per cent. Support is lower for Kansas senator Sam Brownback, New York governor George Pataki, and California congressman Duncan Hunter.