In short, he was contacting the board directly and went above and beyond for his mentee AFTER she was deemed unfit for command twice! Then he turned it into a racism issue.
"The last Army four-star general fired for misconduct was Gen. Kevin Byrnes, who in 2005, as the head of the service's Training and Doctrine Command, was dismissed over an extramarital affair.
Gen. Stanley McChrystal resigned in 2010 after a Rolling Stone article published comments from McChrystal and senior aides that were critical of then-Vice President Joe Biden and other officials in President Barack Obama's administration."
https://www.armytimes.com/news/your-army/2024/12/10/army-secretary-fires-four-star-general-for-promotion-board-meddling/
"The last Army four-star general fired for misconduct was Gen. Kevin Byrnes, who in 2005, as the head of the service's Training and Doctrine Command, was dismissed over an extramarital affair.
Gen. Stanley McChrystal resigned in 2010 after a Rolling Stone article published comments from McChrystal and senior aides that were critical of then-Vice President Joe Biden and other officials in President Barack Obama's administration."
https://www.armytimes.com/news/your-army/2024/12/10/army-secretary-fires-four-star-general-for-promotion-board-meddling/