US President Donald Trump could not contain his contempt for the #MeToo movement at a rally in the US on Thursday night (Friday AEST).

Mr Trump — who has been accused of sexual misconduct by at least 19 women — blatantly made fun of the international movement against sexual harassment during a speech to supporters in Montana, dismissing it as political correctness gone too far.

As Mr Trump took aim at Democratic Senator Elizabeth Warren, a possible 2020 presidential challenger of Native American heritage, he again referred to her again as “Pocahontas.”

President Trump said he would give Senator Warren a DNA test kit in the middle of a debate and offer $1 million for her favourite charity, “paid for by Trump, if you take the test and it shows you’re an Indian.”

“We will take that little kit, but we have to do it gently because we’re in the hashtag MeToo generation, so we have to be very gentle, and we will very gently take that kit and we will slowly toss it,” he said.

Senator Warren responded on Twitter, advising Mr Trump:

“While you obsess over my genes, your Admin is conducting DNA tests on little kids because you ripped them from their mammas & you are too incompetent to reunite them in time to meet a court order. Maybe you should focus on fixing the lives you’re destroying.”

Senator Warren was referring to the US Health and Human Services Department’s announcement that it will use DNA to confirm parent-child links as it tries to reunite families separated at the US-Mexico border.

Mr Trump has been accused of being a misogynist, and has made no secret of his disdain for women who speak up about sexual or domestic abuse.

In February, when his former staff secretary Rob Porter resigned amid claims by his two ex-wives of domestic abuse, Mr Trump tweeted that “lives are being shattered and destroyed” by “mere” allegations.

“He says he’s innocent, and I think you have to remember that,” Mr Trump said the day before. “He said very strongly … that he’s innocent.”