It’s helpful to keep everything that flies out of Donald J. Trump’s mouth — or shows up on his Twitter feed — in their proper perspective.

It is that the president of the United States is likely to say or tweet whatever the hell pops into his noggin at any time of the day or night.

He now accuses President Obama of wiretapping his Trump Tower offices, allegedly to determine if he had held unauthorized talks with Russian officials before he became president.

Proof? Pffft! Who needs it? Trump seems to ask.

Let us review for a moment a couple of other specious claims that Trump has made.

* He said “thousands and thousands of Muslims cheered” the collapse of the World Trade Center during the 9/11 attacks. They didn’t.

* The president said that “millions of illegal immigrants voted for Hillary Clinton” in the 2016 presidential election, giving her the comfortable popular vote margin she scored over Trump while losing the Electoral College. He has yet to prove that, either.

Now this.

Obama had his staff wiretap his office, according to Trump.

No proof has come forward.

How on God’s Earth can we believe anything that this clown keeps saying?

I cannot.