Donald J. Trump, the champion of due process and the rule of law, has decided, um, that he wants to toss it all out the window in his quest to rid the United States of every single person who comes here illegally.

The president launched another Twitter tirade today in which he suggested rounding up every illegal immigrant he can find and then sending them back immediately to their country of origin.

“No court cases,” he said. “No judges,” he added. Just round ’em up. Get rid of ’em.

This kind of red — and raw — meat plays well with his base. That’s his audience anyway. The rest of us? He doesn’t care.

According to The Washington Post: “We cannot allow all of these people to invade our Country,” Trump wrote. “When somebody comes in, we must immediately, with no Judges or Court Cases, bring them back from where they came. Our system is a mockery to good immigration policy and Law and Order. Most children come without parents.”

The president continued in a second tweet, “Our Immigration policy, laughed at all over the world, is very unfair to all of those people who have gone through the system legally and are waiting on line for years! Immigration must be based on merit — we need people who will help to Make America Great Again!”

There he goes yet again. He is painting every illegal immigrant with the same broad brush, presuming that every one of them is here to bring havoc to Americans, that they want to kill us, rape us, sell us illegal drugs, kidnap our children and then peddle them as sex slaves.

Due process? U.S. immigration law gives illegal immigrants certain rights, such as the right to have their cases heard by a judge. The president doesn’t give a damn about that.

Get rid of all of them, he said.

His posture is not going to “make America great again.” It is going to make us a pariah state.

Disgraceful.