A former Trump Organization executive said late Monday that it is "impossible" 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 would not have known about the 2016 Trump Tower meeting between campaign officials and a Russian lawyer offering damaging information on Hillary Clinton Hillary Diane Rodham ClintonFox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio Trump, Biden court Black business owners in final election sprint The power of incumbency: How Trump is using the Oval Office to win reelection MORE.

"Impossible, in my opinion, based on my experience working with Trump and everybody that worked with Trump," Barbara Res said on "Anderson Cooper 360" when asked if it was plausible that Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE would not tell his father about a message he received regarding the Kremlin's support for his presidential campaign.

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"Something major, something newsworthy, something press-worthy would always go before Trump."

Res, who was in charge of construction at Trump Tower and left the Trump Organization in the 1990s, added that Trump always wanted to be "on top of things."

"Impossible." Barbara Res, a former Trump Organization executive, says there is no chance Donald Trump would not have been informed of the Trump Tower meeting before hand https://t.co/qqKKCkHYy1 pic.twitter.com/6t9VlnmWKz — Anderson Cooper 360° (@AC360) July 31, 2018

Her comments came just days after CNN reported that the president's former personal attorney, Michael Cohen, claims Trump knew about the Trump Tower meeting in 2016 ahead of time.

Cohen’s claims contradict the many statements from the president, Trump Jr. and their legal teams about Trump's knowledge about the Trump Tower meeting.

Cohen does not have evidence to back up his claims, sources told CNN. But he is reportedly willing to discuss it with special counsel Robert Mueller in his probe into potential ties between the Trump campaign and Russia.

Trump's lead attorney in the Russia probe, Rudy Giuliani, has pushed back hard against the accusation, calling it "flat out untrue" while speaking on "Fox News Sunday."

Trump has also come out against Cohen since his accusation, resurfacing an old tweet from Cohen in which he defended Trump Jr. for his transparency regarding the meeting.

"Do you think the Fake News Media will ever report on this tweet from Michael?" Trump said.