Texas Governor and Republican Presidential hopeful George W. Bush, talks with waitress Mary Carroll at the Country Kitchen Resturant during a campaign stop in Newport New Hampshire.

Former Vermont governor, US Democratic presidential hopeful Howard Dean playing cards with staff and media on his plane from Wisconsin to Arizona 31 January 2004.

Republican Presidential hopefuls (L-R) Representative Tom Tancredo of Colorado, former Wisconsin Governor Tommy Thompson, Senator Sam Brownback of Kansas, former Massachusetts Governor Mitt Romney, former New York City Mayor Rudy Giuliani, Senator John McCain of Arizona, former Arkansas Governor Mike Huckabee, Representative Duncan Hunter of California, former Virginia Governor Jim Gillmore and Representative Ron Paul of Texas stand together at the the start of the Republican Debate at Saint Anselm College in Manchester, New Hampshire 05 June 2007.

John Kerry boards his campaign plane at Reagan National Airport in Washington DC Sunday 03 October 2004.

Illinois Senator and Democratic Presidential hopeful Barack Obama during a stop at Jack's New London coffee shop where he bought cupcakes for the press corps in New London New Hampshire USA 7 January 2008. Voter polls show Senator Obama with a strong lead over his fellow candidate, New York Senator Hillary Clinton, in the state of New Hampshire where the first in the nation primary is held on 8 January 2008.