According to an upcoming book, Donald Trump agreed to remove his son-in-law from leading his re- election campaign in 2020.
The plan, according to Navarro, was to replace Kushner with Steve Bannon, who ran Trump's successful 2016 campaign and was his chief strategist in the White House.
The plan didn't work when the president refused to personally deliver the news to Kushner.
A copy of the book " Taking Back Trump's America: Why We Lost the White House and How We'll Win It Back" was obtained by The Guardian.
In The Guardian extract, Navarro said that he was involved in the plot to oust Kushner.
After setting up a meeting between Trump and the Home Depot founder, the president agreed to replace him with Steve, according to the man who arranged the meeting.
The plan was supported by Donald Trump Jr.
After months of reports of power struggles with other advisers, the White House fired the strategist.
Marcus was asked to be the messenger by Trump because he was afraid of family troubles if he himself had to deliver the bad news.
When Marcus tried to deliver the message, he was told there was no way he would step down.
That was the end of it. The book states that the rest is a failure.
In 2020, Trump lost the election to Biden.
"Why a president who is supposed to be one of the greatest evaluators of talent would make such bad personnel choices across so many White House and cabinet-level positions" was the question asked by the author of the book.
He served as a senior adviser to his father-in-law.
The section of his book called "Both Nepotism and Excrement Roll Downhill" was titled in an apparent dig at the author.
It's an example of the many feuds in Trump's inner circle, as evidenced by the split between the two sides.
The congressman is due to go on trial in November on charges of contempt of Congress.