As Donald Trump settles into his Presidency and as the Congress (and the Press) begin to figure out that he probably
is going to "be the President for one and perhaps two full terms," I think that I am seeing that there is likely to be something about "Donald Trump, the billionaire real-estate businessman," that neither Congress nor the Press presently expect:
"The Art of the Deal."
Throughout most of US History up to now, Presidents have either been former military officers (Generals), or professional politicians. A few, such as Dr. Woodrow Wilson, have been academics. All three of these
curriculum vitae have been steeped in politics of one sort or another, and so, each President has basically sat in the White House, being "good politicians," and staying out of Congress' way until handed a bill to sign, which they usually did.
I suspect, though, that Donald Trump is going to be
much more actively involved in the law-making process. Although he cannot directly participate in the law-making process, he
can introduce Congress to "the Art of the
Deal."
DT
has used this word quite repeatedly in ordinary conversation about policies and legislation. It comes quite naturally to someone who has made
billions of dollars for himself and his backers through "real-estate
deals." But, it is not a word that we commonly hear from a
President.
(One catch-phrase I've heard used is:
"the fine art of persuading someone to do what he doesn't want to do, because he wants to do it.") 
Using his power of veto
(which, yes, can be overridden, although this has occurred only 110 times in 250 years), and his well-hewed powers of negotiation and of persuasion, I think that Donald Trump will be more actively in trying to guide Members of Congress to
negotiate, which historically I think they're absolutely no-good at doing.
(If they'd shut up a little and follow his lead a little more, I think they'd
learn something ...)
I think that Mr.
Ryan (and Mr. McConnell), as the erstwhile majority-leaders of their respective Houses, are two gentlemen who are most likely to be most-confronted by an "activist President" who is also an experienced negotiator. Right now, they're using procedural rules to make the best possible use of their slender simple-majority in Congress, but that won't last long. Then, Congress will go right back to
reading the Washington telephone directory to one another "fillibustering the days away."
...
Unless there is a persuasive negotiator in the White House, who can
persuade them to "think differently" about their jobs. To put down their phone-books and
compromise. To see themselves, not as Republicans and Democrats, but Senators and Congressmen representing two viewpoints of a
common national purpose.
The US Presidency has never before had an Officeholder such as this: a thoroughly successful businessman with no political experience whatsoever ...
except the very politics of negotiation and deal-making which caused him and those around him to become filthy-rich. Professional politicians, military officers, and academics, although they
do play the game of politics, have never negotiated in
this way, nor have any of them amassed such vast sums of personal wealth in the process.
Although
Wikipedia says that George Washington was our richest President at ~$500 million dollars net worth, it counts Donald's net worth at $3.7
billion dollars. That's a pretty damned successful
negotiator!
(Others have been businessmen. Jimmy Carter's family has led a successful agricultural business for many generations, and because of it he is still prosperous.)
Although I did not vote for either Trump nor Clinton, I must admit that I am now quite intrigued by the President that we have just elected, and what he might do to our future perceptions of the Office and of its role in Governance. He brings to the table skills that no other President before him has had, at least not in such measure.
Might he prove to be "a
transformational 
President?" We shall have to wait and see.
