Rudy Giuliani is the favourite presidential candidate for Republican Party sympathizers in the United States, according to a poll by Opinion Research Corporation released by CNN. 32 per cent of respondents would support the former New York City mayor in a 2008 primary. Arizona senator John McCain is second with 26 per cent, followed by former House of Representatives speaker Newt Gingrich with nine per cent, and former Massachusetts governor Mitt Romney with seven per cent.Support is lower for former Virginia governor Jim Gilmore, former New York governor George Pataki, Kansas senator Sam Brownback, Nebraska senator Chuck Hagel, former Arkansas...