Republican Rudy Giuliani is the most appealing presidential contender in the United States, according to a poll by Rasmussen Reports. 31 per cent of respondents say they will definitely vote for the former New York City mayor if he runs for president in 2008. Democratic New York senator Hillary Rodham Clinton is a close second with 30 per cent, followed by Democratic Illinois senator Barack Obama with 28 per cent, Republican Arizona senator John McCain with 21 per cent, and Democratic former North Carolina senator John Edwards with 20 per cent. When asked which candidate they would definitely not support...