President Trump is a master negotiator.

This is an non-negotiable fact and thus, if Trump negotiates somewhat differently than might have been anticipated from his reputation, published works or a study of the meaning of the word “negotiation,” it is our understanding of what “negotiation” means that must be updated.

On Tuesday, Trump offered a master class in negotiating with a bipartisan delegation from Congress on the subject of the Deferred Action for Childhood Arrivals policy and immigration reform. From watching this man work, it is clear that our concept of what it means to negotiate lags far behind the reality of Trump’s dealmaking. Some suggested updates to Trump’s key principles from “The Art of the Deal” follow.

Think big

Think of something huge that you want, like a wall. Do not say anything about it, though! That is a rookie mistake of negotiating: saying the thing you are thinking out loud. You should instead state the sort of things you might like, and then leave it open to others to decide how much of it you ought to have. If they say something wrong, or something you don’t want, don’t correct them. Leave that for everyone else in the room to do, frantically, after you have finished saying you agree.

Protect the downside, and the upside will take care of itself

Protect the downside at all costs. Fight for the downside. Struggle for the downside. Kill for it if you have to.

Do not spend any time working toward or cultivating the upside.

Maximize your options

If you go into the room definitely wanting one thing and not another, a way of maximizing your options is to suggest that maybe you would be open to EITHER thing. Take Tuesday’s example. Before the meeting, and, indeed, at the start of the meeting, Trump suggested he might like security measures or a wall of some kind attached to any DACA bill, but a great negotiating tactic he employed was to suggest that he might be willing to go for just a plain DACA bill by itself. When Sen. Dianne Feinstein (D-Calif.) suggested, “What about a clean DACA bill now, with a commitment that we go into a comprehensive immigration reform procedure?” and Trump said, “Yeah, I would like — I would like to do that,” that was not her being sneaky. That was HIM being sneaky. This is the mark of a master dealmaker.

Know your market

Who are you doing this for? Ask yourself that question before going into any negotiation. Are you doing this because you want a certain policy outcome, or because you would like Wolf Blitzer’s voice to linger over the syllables of your name in awe and wonder when this gets discussed on cable afterward? It is important to know which you want, because you are unlikely to get both.

Use your leverage

Consider a negotiation in which one of the parties is the president of the United States and the other parties are individual members of Congress. You would think that one party would have more leverage than the other, but you would be wrong.

Get the word out

The word is “yes.” Also, “earmarks.”

Fight back

One of the best ways of fighting back is to just say a vague “yes” to everything that is proposed to you. That way they know you mean business. Deals are like improvisation, and a big part of any improv is saying “yes, and” to whatever is presented to you.

Deliver the goods

The “goods” are positive remarks from Lindsey Graham. Ask yourself, what is more important, having Lindsey Graham say nice things about you in a meeting, or specific legislation? You might think the latter, but ask yourself whether any word with that many syllables can be entirely trustworthy.

If you had any doubt that Trump was delivering the goods, he pointed out on Wednesday that he had gotten several “letters” (CNN clips, the most important form of letter) saying he had been a big success. That’s the true deal: The deal that was inside us all along. Is a deal something different than having someone say a nice thing about you when there is a camera there? I hope not, or most of this advice has been bad!

Contain the costs

Some people might consider the need for you, your press secretary and the people in the room with you to walk back the remarks you have just made a “cost,” but it’s actually a benefit. The best negotiations are the ones that are full of surprises — to you and to everyone around you.

And, most important of all …

Have fun!

Good luck out there!