Donald J. Trump has issued another stunner. He possesses an endless, bottomless supply of them.

The president tweeted something today about a total ban on transgender Americans serving in the U.S. military. He contends that the cost of providing them health care is too onerous.

But … does he provide any evidence that transgender service personnel are any less capable than others? Does he suggest that they cannot do the duties of their military obligation? Is he suggesting that individuals who have changed their sexual identity are unpatriotic?

This is yet another disgraceful example of presidential caprice. He said he talked it over with “my generals and military experts” and has determined that transgender service personnel — who comprise a tiny fraction of the more than 1.3 million individuals in uniform — no longer can wear their nation’s military uniform.

His tweet apparently caught the Pentagon brass by surprise; it also stunned many in Congress who didn’t know the president was going to make the declaration. As The Hill reports as well, U.S. House Armed Services Committee Chairman Mac Thornberry — yours truly’s  member of Congress — was notably silent on the policy decision.

Read the story from The Hill here.

Congressional Republicans, not to mention Democrats, were angry at the presidential tweet.

Senate Armed Services Committee Chairman John McCain said Trump’s policy pronouncements via Twitter are an unacceptable vehicle. He, too, was kept out of the loop.

The president appears — yet again! — to be appeasing his base at the expense of the rest of the nation he was elected to govern.

I am now going to await some evidence from the president that transgender military personnel have harmed the nation’s ability to defend itself.

It’s going to be a long wait, but that’s all right. I can find the patience.