PORN star Stormy Daniels' estranged mother hopes her daughter's reported relationship with Donald Trump doesn't affect his presidency.

"If Mr Trump runs four more times, I would vote for him every time," Sheila Gregory told The Dallas Morning News. "I like him. I like the way he handles things.

"It's time this country is put back where it belongs - taking care of the people here instead of the people who don't belong here."

Daniels has very publicly stated she wants to talk about her alleged affair with the US president, which reportedly happened over a decade ago.

She recently offered to return the $US130,000 ($160,000) settlement she received in a "hush agreement" her lawyers say Mr Trump didn't sign.

Mr Trump's alleged affair with Daniels reportedly lasted several months from 2006 into 2007, and has created a headache for the White House.

It was around the same time that Daniels and her mom stopped speaking, even though Mrs Gregory told the Dallas Morning News she tries to contact her daughter every few months.

"I loved her dearly," she said. "I still love her dearly."

Asked by the newspaperwhy her daughter had turned to porn and stripping, Mrs Gregory said: "It hurts me deeply."

"My friends all say the same thing: 'I can't believe that is the same sweet child - you took such good care of her,'" she continued. "I say, 'How do you think I feel?'"

Mrs Gregory blamed her ex-husband showing back up in Daniels' life for the former A-student's decision not to go to university.

But Daniels' father Bill Gregory told the newspaper he hadn't seen his daughter for 20 years.

"Obviously, a father doesn't want his daughter to become a porn star," he told the newspaper. "But she's an adult - she can do what she wants to do."