Donald J. Trump campaigned for the U.S. presidency vowing to toss aside the Iranian nuclear arms deal brokered by the Obama administration.

He did what he promised to do. We’re now out of the deal, even though our partner nations remain committed to preventing Iran from obtaining nuclear weapons.

So, what does the president do? He goes to Singapore, meets with North Korean despot Kim Jong Un, declares the North Korean nuclear threat to be over after supposedly extracting a pledge to “denuclearize” the Korean Peninsula.

Except that Kim Jong Un didn’t agree to what Trump said he did. Now we hear that Kim is accelerating his nuclear weapon development.

Oh, and the Iran deal actually resulted in the Iranians getting rid of fissile material it could have used to build a nuclear bomb.

All of this comes from the guy who pledged to make the “best deals” in the history of humankind. He promised to end the “disastrous” deals worked out by President Barack Obama’s team in conjunction with our allies.

However, he didn’t get any kind of deal from Kim Jong Un.

Now he’s headed to Helsinki, Finland, where he’ll meet one-on-one — sans national security aides — with Russian strongman/former KGB boss Vladimir Putin.

What in the world can go wrong with that meeting?