If there was anything The Donald was known for around New York City before he became a reality TV star, being one of the few well-known business people who had plenty of time to play one on TV after bankrupting his casinos, it was that his word meant nothing. Most people consider it a matter of honor to keep one’s promises. To Trump, it’s a matter of weakness. Only fools felt constrained by deals made in the minds of the dishonorable, and Trump didn’t want to be anybody’s fool.

Now that he’s president, it hasn’t gotten any better, as Saudi Arabia, who bought and paid for Trump’s love, found it.

A day after the United States signed a landmark nuclear deal with Saudi Arabia, President Trump added a new condition to the sale of nuclear reactors to the kingdom, declaring that the entire arrangement now depends on the Saudi willingness to establish diplomatic relations with Israel.

The deal “is totally subject to Saudi Arabia joining the very respected and successful Abraham Accords,” Mr. Trump said in a post on his social media site, referring to a series of agreements that normalized relations between Israel and other states, including Bahrain and the United Arab Emirates.

The deal lasted all of one day. It wasn’t good deal, as it failed to include international oversight to make sure the Saudi’s weren’t enriching Uranium for nuclear weapons. Of course, that was of little concern to Trump, whose view was that the Saudi’s promised they wouldn’t make a bomb and since the Saudi’s loved and respected him, surely they would keep their word.

As for Trump, that was another matter.

The Saudi’s have already refused to join in the Abraham Accords until Israel agrees to a Palestinian state, but that’s not relevant. Perhaps Trump thinks he can strong-arm the Saudi’s by holding out nuclear power as the carrot to get them to acquiesce. Perhaps Trump forgot that this wasn’t part of the deal. Perhaps it was just a whim that popped into his head. Who knows?

What is clear is that a deal, whether good or bad, was made. It was signed and sealed. And then Trump renegged. What is clear is that no deal with Trump is a deal. because Trump doesn’t believe that he has any obligation to keep his word, to honor his promises. What is clear is that it happens again and again, this time to his good buddies, who just happened to murder and dismember an American journalists, who showed Trump the love he so desperately craves and wants to believe is real.

And if the deal with the Saudi’s doesn’t hold, even after Crown Prince Mohammed bin Salman gave billions to the family and promised a trillion in investment, then no deal is safe. The significance of this should be readily apparent, particularly when Trump is trying desperately to find a way out of his Iran debacle. There is no reason to negotiate in good faith with a country whose president doesn’t believe he’s bound by his own deals.