WASHINGTON - Porn actress Stormy Daniels said she was threatened in a bid to keep her silent about her alleged fling with Donald Trump, which she detailed in a highly-anticipated primetime TV interview broadcast Sunday.

She is seeking to be released from a non-disclosure agreement she signed 11 days before the 2016 presidential election that brought Trump to power, for which she was paid $130,000 - leading to allegations that the payment amounted to an illicit contribution to his campaign. Daniels told Anderson Cooper on CBS's "60 Minutes" that Trump had not asked her to keep their 2006 sexual encounter secret, but said she was approached by a man in a Las Vegas parking lot after agreeing to sell her story for $15,000 in 2011.

"I was in a parking lot, going to a fitness class with my infant daughter. Taking, you know, the seats facing backwards in the back seat, diaper bag, you know, gettin' all the stuff out," she said.

"And a guy walked up on me and said to me, 'Leave Trump alone. Forget the story.' And then he leaned around and looked at my daughter and said, 'That's a beautiful little girl. It'd be a shame if something happened to her mom,'" Daniels said.

Cooper asked: "You took it as a direct threat?" "Absolutely," Daniels said.

"I was rattled, I remember going into the workout class and my hands were shaking so much I was afraid I was gonna drop her," she said of her daughter.

Daniels said she was introduced to Trump at a celebrity golf tournament in Lake Tahoe in July 2006.

The conversation "started off all about him, just talking about himself," with Trump asking if Daniels had seen his picture on the cover of a magazine, she said.

"I was like, does this, does this normally work for you? And he looked very taken back."

She told him: "Someone should take that magazine and spank you with it."

She took the magazine and told Trump to drop his pants, which he did - with underwear still on - "and I just gave him a couple swats," said Daniels.

The real estate mogul "was a completely different person" after that, and he stopped talking about himself.

Trump told her, "'Wow, you, you are special. You remind me of my daughter.' You know, he's like, 'You're smart, beautiful and a woman to be reckoned with,'" she said.

Trump's wife Melania - who had recently given birth to their son - came up only briefly: "I asked, and he brushed it aside, said, 'Oh yeah, yeah, you know, don't worry about that, we have separate rooms,'" Daniels said.