Donald Trump's personal lawyer has said he will assert his constitutional right against self-incrimination in a civil case brought by a porn actress who said she had an affair with Mr Trump.

President Donald Trump has said Stormy Daniels pulled "a total con job" by promoting an artist's sketch of a man she says threatened her to keep silent about an alleged sexual encounter with Mr Trump years ago.

The porn actress alleging a sexual affair with President Donald Trump has released a sketch of the man she says threatened her in a Las Vegas car park to stay quiet about the relationship.

Porn actress Stormy Daniels has arrived at a New York City courthouse for a hearing about an FBI raid targeting President Donald Trump's personal lawyer.

President Donald Trump has called the federal raid on the offices of his personal lawyer "a disgrace".

Federal agents carrying court-authorised search warrants have seized documents from President Donald Trump's personal lawyer Michael Cohen.

President Donald Trump has said he did not know about the $130,000 payment his personal lawyer made to adult film actress Stormy Daniels, who alleges she and the president had an affair.

Behold, Stormy Daniels is risen! From behind an unsigned — therefore legally invalid — non-disclosure agreement, the porn star walks amongst men, making the orangest one squirm and quake in his handmade shoes.

A lawyer for an adult film star claiming to have had a sexual encounter with President Donald Trump has filed a motion seeking evidence from the president and his lawyer.

Donald Trump's personal lawyer has challenged porn actress Stormy Daniels' claim that someone tied to the president threatened her with physical harm if she went public with her story about a tryst with Mr Trump years ago.

Adult film star Stormy Daniels has said she was threatened to keep silent about an alleged sexual encounter with Donald Trump in 2006, telling her story in a highly anticipated interview with CBS' 60 Minutes.

New documents show a second lawyer with ties to Donald Trump was involved in legal efforts to keep adult film star Stormy Daniels from talking about her alleged affair with the president.

An adult film actress who said she had sex with US President Donald Trump has offered to return the US$130,000 she was paid for agreeing not to discuss their alleged relationship.

A porn star who has said she had sex with Donald Trump has filed a lawsuit seeking to invalidate a nondisclosure agreement that she signed days before the 2016 presidential election.

Donald Trump's personal lawyer has said he paid $130,000 out of his own pocket to a porn actress who allegedly had a sexual relationship with the US president in 2006.

Adult film star Stormy Daniels has denied claims of a 2006 sexual relationship with Donald Trump.