He can't. It is grossly irresponsible to even consider it.

Of course, the reason Chelsea Manning blew the whistle on the USA was because of being transgender.

This is more bigotry, white supremacist hatred. When will Trump be relieved from his office?

It weakens our military by sending highly qualified individuals to civilian life. 

THE USA IS A BANANA REPUBLIC!

The USA military does not operate on such fluid policy. The entire issue of LGTB members of the military went through a long process to achieve equality. It is going to have to engage a long process to counter the results of the past decade.

July 26, 2017

President Trump announced on Twitter on Wednesday (click here) that he will ban transgender people from serving in the military in any capacity, an abrupt reversal of an Obama administration decision to allow them to serve openly and a potential end to the careers of thousands of active-duty troops.

The decision halts a years-long process of advancing rights for lesbian, gay, bisexual and transgender people in the U.S. military that began with the repeal of the “don’t ask, don’t tell” policy in 2010. And the nature of the announcement left both Republicans and Democrats in Congress concerned about the seeming broad scope of Trump’s order.

Citing the need to focus on what he called “decisive and overwhelming victory,” Trump said that the military cannot accept the burden of higher medical costs and the “disruption” that transgender troops “would entail.”

“After consultation with my Generals and military experts, please be advised that the United States Government will not accept or allow transgender individuals to serve in any capacity in the U.S. Military,” Trump wrote on Twitter. “Our military must be focused on decisive and overwhelming victory and cannot be burdened with the tremendous medical costs and disruption that transgender in the military would entail.”...