In his address to the Democratic Party Convention in Boston, presidential challenger John Kerry pledged to build a stronger US military and to keep Americans safer in the war against terrorism.
The United States presidential election campaign began in earnest tonight, with Senator Kerry officially accepting the Democratic Party's nomination to challenge President Bush in November.
The latest poll shows that Mr Kerry has fallen behind President George W Bush, with many Americans saying they are not clear on his policies on Iraq and the war on terror
Earlier, John Edwards, the US Democratic Party’s Vice Presidential candidate, told the party’s convention that America must restore relations with allies around the world.
In his address in Boston, Senator Edwards urged his audience to support John Kerry in November’s presidential election.
The speech was televised on the main US networks.