A former contestant on The Apprentice who claimed Donald Trump groped her has lodged a subpoena that could reveal damaging details about the US president.

The subpoena, filed in a US court last month, seeks to expose all documents from Trump's campaign concerning a group of women who accused Trump of molesting them, according to an exclusive Buzzfeed report.

Summer Zervos, who participated in popular TV show The Apprentice, claimed Trump groped and kissed her during a 2007 meeting at the Beverly Hills Hotel in 2007.

The season-five contestant said she went to the plush Los Angeles hotel to discuss a possible job at the Trump Organisation.

Zervos went public with her explosive allegations in October last year, just ahead of the presidential elections, but Trump responded by denying the claim and calling her a liar.

Summer Zervos attends a press conference with attorney Gloria Allred (L) to announce their defamation lawsuit against Donald Trump on January 17, 2017 in Los Angeles, California.

Trump's denial was followed by Zervos suing the billionaire for defamation.

As part of that challenge, Zervos's legal team requested that Trump hold all documents pertaining to her groping allegations.

They also petitioned the court for "all documents" the campaign had about women who claimed Trump had molested them.

That group included Jessica Leeds, Mindy McGillivray, Rachel Crooks, Natasha Stoynoff, Temple Taggart, Kristin Anderson, Cathy Heller, Jill Harth and Jessica Drake.

Trump's lawyers have argued the subpoena is too broad, and requested any hearing is delayed until he has left the White House, according to Buzzfeed .

They also claim Zervos's subpoena is politically motivated and designed to dig up dirt that could be used to try and impeach Trump.

In her press conference last year, Zervos, alongside her lawyer Gloria Allred, revealed what she claimed had happened inside the Beverly Hills Hotel.

"I waited for about 15 minutes until Mr. Trump emerged. He had his suit on. I stood up and he came to me and started kissing me open-mouthed as he was pulling me toward him. I walked away and I sat down in a chair.

"He was in a low seat across from me and I made an attempt at conversation. He then asked me to sit next to him. I complied. He then grabbed my shoulder and started kissing me again very aggressively and placed his hand on my breast.

"I pulled back and walked to another part of the room. He walked up, grabbed my hand, and walked me into the bedroom. I walked out. He then turned me around and said, 'Let's lay down and watch some tele-tele.'

"He put me into an embrace and I tried to push him away. I pushed his chest to put space between us and I said, 'C'mon, man, get real.' He repeated my words back to me - 'get reeeeal' - as he began thrusting his genitals.

"He tried to kiss me again with my hand still on his chest and I said, 'Dude, you’re tripping right now' attempting to make it clear I was not interested. He said, 'Well, what do you want.' I said, 'I came to have dinner.' He said, 'Okay, we'll have dinner.'"