Donald J. Trump’s obsession with Twitter is diminishing his standing around the world, or so it would appear.

I keep circling back to a question: How do world leaders trust anything the president of the United States tells them when he continues to tweet ridiculous messages?

Take these instances involving Trump and his tweets:

* He said former President Barack Obama ordered the wiretapping of his campaign office. That was false.

* The president said Hillary Rodham Clinton’s popular vote margin “victory” in the 2016 election was because of “millions” of illegal immigrants voting for her. Another falsehood.

* He says Germany is making “too many cars” and selling them to Americans.

* Trump ripped into London’s mayor after the Manchester shooting by misquoting what the mayor said about the threat of international terrorists.

I am missing many more examples just since Trump became president, but you get the idea.

The man cannot control his impulses. He fires off these tweets and then changes the subject. He meets in private with world leaders and then blabs his brains out about them.

The president’s Republican allies in Congress, though, give him a pass. House Speaker Paul Ryan blithely states that Trump is “new at this,” meaning he’s “new” at governing, new at understanding the limits of presidential power.

The world is a volatile place, which I am sure the president understands. What I do not get is why he cannot control himself. I’m pretty sure we’ve got leaders all around the planet who are wondering the same thing.