Barack Obama’s march to the White House appeared unstoppable as polls gave him a series of victories in key states.

Barack Obama has won Pennsylvania in an early sign that he will become the first black president of the United States, exit polls said today.

Barack Obama will win Vermont while John McCain will carry Kentucky, both as expected, in the first projections of the US presidential election.

Barack Obama was on course to make history tonight by becoming the first black president of the United States.

Barack Obama came up a big winner in the presidential race in Dixville Notch, New Hampshire, where the US’s first Election Day votes were cast and counted early today.

John Kerry and Howard Dean were battling their way to the finish line in the New Hampshire primary tonight as voters helped choose who would challenge George Bush for the presidency.

Voting began today in the New Hampshire Primary, with the stakes high for the Democratic candidates hoping to run for the White House later this year.