Former White House aide Omarosa Manigault Newman Omarosa Onee Manigault NewmanTrump hurls insults at Harris, Ocasio-Cortez and other women Pelosi makes fans as Democrat who gets under Trump's skin The Memo: Impeachment's scars cut deep with Trump, say those who know him MORE shared a video Tuesday night showing President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE’s former longtime personal attorney Michael Cohen boarding a Trump plane in September 2016.

Manigault Newman said the video, which was shown on MSNBC’s “Hardball,” is evidence that Cohen was involved in the Trump campaign, something she predicted the president will begin to deny.

“He sat and met with the president during that trip,” she said on “Hardball.”

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“He was very involved,” she added of Cohen. “He was directing some of the things that were happening and he was impacting some of the decisions that the president made, as well as the president telling him to fix things.”

Last week it was reported that @omarosa has an extensive stash of video, emails and other forms of documentation. Here's a video of Michael Cohen boarding Trump's plane during the 2016 campaign. pic.twitter.com/1TJBgbidAe — Hardball (@hardball) August 21, 2018

Cohen pleaded guilty earlier Tuesday afternoon to charges of bank fraud, tax fraud and campaign finance law violations. He said he violated campaign finance laws "in coordination and at the direction of a candidate for federal office," a reference to Trump.

It was the latest tape released by Manigault Newman, who has issued several tapes on which she secretly recorded Trump or Trump associates while promoting her new memoir.

Manigault Newman’s memoir, “Unhinged: An Insider's Account of the Trump White House,” hit shelves last week and made a series of fiery claims about the Trump White House, prompting intense criticism from the president.

Excerpts from the book detailing some of those claims began to surface earlier this month, and Manigault Newman has been on a media tour in recent weeks to promote the book.

She has released multiple tapes of Trump and Trump allies and staffers, including one of the president's daughter-in-law Lara Trump offering Manigault Newman a campaign job after she was fired by the White House last year and another of aides appearing to discuss an alleged tape on which President Trump used the N-word.

Trump has taken to Twitter to lash out at Manigault Newman, including calling her a “dog” last week.