Republican presidential nominee Donald Trump has announced a 100-day plan he pledges will "restore prosperity to our country".

In a speech made at Gettysburg, the GOP candidate made a series of pledges he promised to carry out during his first 100 days in office, including border control and job creation.

"On Nov. 8, Americans will be voting on this 100 day plan to restore prosperity to our country, secure our communities and honesty to our government," The Hill reported Trump as saying.

"This is my pledge to you and if we follow these steps, we'll once more have a government of, by, and for the people."

Trump is attempting to claw back ground in the polls, where he is currently trailing behind his Democrat rival Hillary Clinton in nine out of 11 swing states.

He is also behind Clinton in the majority of national polls, although he has seen a slight bump in the last few days compared to his numbers several weeks ago, which had dropped following the release of footage of him making lewd comments about women.

"We now find ourselves at that very special fork in the road," Trump added. "Do we repeat the mistakes of the path or do we choose to believe that a great unwritten future still lies ahead for us and our beloved country?

"I'm asking the American people to rise above the noise and clutter of American politics and to embrace that great faith and optimism that has always been the central ingredient of American character."

The GOP candidate has also suggested he may not accept the results of the election as he believes the poll is rigged – a line that seems to be playing well among his supporters.