The daughter of one of President Trump's Cabinet secretaries apparently wrote a social media post last month slamming his proposed ban on transgender individuals entering the military.

Interior Secretary Ryan Zinke Ryan Keith ZinkeTrump extends Florida offshore drilling pause, expands it to Georgia, South Carolina Conspicuous by their absence from the Republican Convention Trump flails as audience dwindles and ratings plummet MORE's daughter Jennifer Detlefsen, who is a Navy veteran, sharply criticized the proposal, calling the president a "disgrace," the Billings Gazette reported Friday.

A screenshot of the post published by the Gazette shows a quote from an NPR story about Trump's announcement on Twitter last month that reads “the United States Government will not accept or allow … Transgender individuals to serve in any capacity in the U.S. Military.”

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In the caption, Zinke's daughter blasted Trump and said that the ban was "inexcusable."

“This man is a disgrace. I've tried to keep politics out of my social media feed as much as possible, but this is inexcusable,” read her post on July 26, which still appeared online on Saturday.

"This veteran says sit down and shut the f--k up, you know-nothing, never-served piece of s--t," she added.

The post circulated among national LGBT advocates, one of whom shared a screenshot with a paper in Montana this week.

The Interior Department said in a statement to the Gazette that family members of Cabinet members deserve "privacy."

“This is not a matter related to the Department of the Interior, so I cannot offer you a statement,” spokeswoman Heather Swift said. “Family members are not elected officials and deserve privacy and respect."

Trump signed a presidential memo Friday officially ordering the Pentagon to implement the ban on transgender individuals trying to enlist in the military.

The memo requests that the Pentagon develop an implementation plan for the transgender ban by Feb. 21, 2018, to be put in place on March 23, 2018.