Trump wins swing state slam as Bernie Sanders blasts Democrats

Donald Trump is now confirmed to have earned his party's biggest election victory since 1988.

Overnight, he bagged the final swing state of Arizona, taking his electoral college tally to 312.

Former presidential hopeful Bernie Sanders told American media the Democrats had failed working people - and had been abandoned by working people.

In Florida, Trump supporters have gathered at the president-elect's residence of Mar-a-lago.