Trump’s order to push out transgender troops, issued late Monday night, was instantly condemned by an array of activist groups as exceptionally egregious and ultimately harmful to military readiness. They say transgender people have been serving successfully for years, including openly on and off for the past decade.

The order took aim at transgender people in personal terms, claiming that physical and mental health conditions make them “incompatible” with military service.

Advocacy groups are preparing to file the first lawsuit challenging President Donald Trump’s executive order revising policy on transgender troops that likely sets the stage for their ban in the armed forces.

By Idrees Ali and Phil Stewart WASHINGTON (Reuters) -Transgender rights advocacy groups filed a lawsuit on Tuesday against U.S. President Donald Trump's executive order that targeted transgender service members,

President Donald Trump on Tuesday ordered an end to all federal funding or support for healthcare that aids the transition of transgender youth, the latest in a series of actions limiting transgender rights in his first eight days in office.