Donald Trump denies sexual misconduct allegations

President Donald Trump has rejected calls for an investigation into claims of sexual misconduct, saying he doesn't know the women who accuse him and that is a political attack by Democrats.

His comments on Tuesday come one day after the White House said it had eyewitnesses who would clear him of any suspicion of wrongdoing amid the allegations, which surfaced during the 2016 presidential campaign.

On Monday, three women who previously accused Trump of misconduct called on the US Congress to investigate the president's behaviour. Trump has denied the allegations and the White House says the women are lying.

Some 50 female Democratic politicians also called for an investigation.

More than a dozen women have accused the real estate developer and former reality television star of making unwanted sexual advances against them years before he entered politics. Reuters has not independently verified the accusations against Trump.

"Despite thousands of hours wasted and many millions of dollars spent, the Democrats have been unable to show any collusion with Russia - so now they are moving on to the false accusations and fabricated stories of women who I don't know and/or have never met. FAKE NEWS!" Trump tweeted.

He also attacked Democratic US Senator Kirsten Gillibrand, who on Monday said Trump should resign due to the allegations, following similar calls by four other male Democratic Senators in recent days.

Their call comes after fellow Democrat Senator Al Franken, under pressure from his party, announced his resignation following allegations of improper conduct.

Two politicians in the House of Representatives, one Democrat and one Republican, have also stepped down amid sexual harassment accusations.

Many of Trump's accusers came forward after a tape surfaced one month before the November 2016 election in which Trump was heard bragging in 2005 about groping and forcibly kissing women.

Trump later publicly apologised for the remarks but called them private "locker-room talk" and said that he had not done the things that he had described.

Reuters