Trump always lashes out when he’s cornered. He told me so years ago.

The president’s tweets and public remarks will only get wilder as the Russia investigation narrows.

In less than two hours, he managed to criticize his own FBI; peddle a new conspiracy theory; attack James B. Comey, Hillary Clinton and ABC; and draw more attention to the Russia probe that has already implicated several of his aides.
.. As someone who spent hundreds of hours observing Trump so I could write “The Art of the Deal,” I find his increasingly extreme behavior entirely consistent and predictable.
.. For five decades now, Trump’s pattern has been that the more aggrieved and vulnerable he feels, the more intensely he doubles down on the behaviors that have always worked for him in the past.
Sunday’s tweetstorm won’t be the last time the president indulges in self-pity, deceit and deflection. In all likelihood, it will get worse.
.. Trump’s first move in the face of criticism has always been to assume the role of victim. “Unfair” has long been one of his favorite words. He always perceives himself as the victim, so he feels justified in lashing back at his perceived accusers.

.. Here’s how he explained the tactic in “The Art of the Deal”:

“When people treat me badly or unfairly or try to take advantage of me, my attitude, all my life, has been to fight back very hard.”

And this:

“Sometimes, part of making a deal is denigrating your competition.”

In the weeks ahead, Trump will also probably double down on lying, even as he falsely accuses others of being dishonest. Consider his remarkable recent suggestion to aides that his remarks on the “Access Hollywood” tape about assaulting women might not be real — even though he has already publicly acknowledged that they were his, and apologized for them. Trump regularly rewrites his narrative, using what Kellyanne Conway has called “alternative facts,” to fit whatever he wants to believe and convey in any given moment. This is classic “gaslighting” — a blend of lying, denial, insistence and intimidation designed to fuel uncertainty and doubt in others about what’s actually true.

In the time I spent with Trump, I concluded that lying became second nature to him long ago, both because he lacked any conscience about being deceptive and because he discovered that he could get away with it. “Truthful hyperbole” is the sanitized term I gave lying in “The Art of the Deal,” with Trump’s blessing. I have never met someone, before or since, who was untruthful so effortlessly.

In Trump’s mind, he is only doing what’s required to win. Here’s the way he describes himself in “The Art of the Deal”: “Despite what people think, I’m not looking to be the bad guy when it isn’t absolutely necessary.”

.. The more threatened Trump feels by troublesome facts, the more preposterous the lies he will tell.

.. To get the outcome he wants, he’s willing to be scorned, parodied and even reviled in ways most of us are not. “I’m the first to admit,” he said in “The Art of the Deal,” “that I am very competitive and that I’ll do nearly anything within legal bounds to win.” He is willing to flatter, cajole and seduce, or bully, threaten and humiliate, depending on which approach he thinks will work best.

..  I watched him switch between these modes countless times during the 18 months I spent around him.

.. If he was getting what he wanted from someone on a call, he’d invariably sign off with, “You’re the greatest, you’re the best.” If he wasn’t getting his way, he was equally comfortable hurling insults and making threats.

.. The more frequent and aggressive Trump’s tweets become, the more threatened and vulnerable he is probably feeling. But he also knows that this approach can work.

.. The other predictable pattern for Trump is his approach to loyalty. He expects it unconditionally — more so when his behaviors prompt backlash — but he provides it only as long as he gets unquestioning adulation in return.

.. One of the most revealing relationships in Trump’s life was with Roy Cohn, best known as the chief counsel to Sen. Joseph McCarthy

.. For more than a decade, Cohn fought hard on Trump’s behalf and was fiercely loyal to him. They often spoke multiple times in a day. But when Cohn became ill with AIDS in 1984, Trump dropped him immediately.

..  I can’t remember a single occasion during the time I spent around Trump when he seemed genuinely interested in the welfare of another human being, including any of his three then-young children. And at that time, he was under vastly less stress than he is now. If either Jared Kushner or Donald Trump Jr. become Mueller’s next target, I can’t help wondering what Trump will perceive as his self-interest.