A senior aide to Donald Trump has declared victory for the Republican politician, following favourable early poll results.

Layne Bangerter, director of the Trump for President campaign in Idaho, told the Press Association: "We're not over confident but now we are calling it. Florida is over. North Carolina, we're going to win.

"He keeps marching through Ohio- this is all we need. He'll keep going to the west- he's going to pick up ever state, possibly Colorado, on into Utah, Nevada.

"New Mexico he will probably not win. But that will show the trend of the night because we're picking up states like Virginia.

"I'm saying it's over- the voice of the people has risen up."

Results are still unfolding. Poll projections suggest Mr Trump has a considerable chance of winning the election, after a strong performance in key swing state Florida.

The Republican has also won Ohio and North Carolina.