The answer to that is more complex than “No.” so apologies for the length.
Let’s say, for example, that the President is aware that a terrorist has snuck into the country, with a plan to kill…
Jack Bauer: Millions of People!
So he sends some soldiers to go hunt the terrorist down and shoot him without mercy.
Fair enough.
Except that he’s just ordered a random person to be murdered on American soil. Is that Constitutional? If the President can blithely murder anyone - or even just foreigners - on his own say so then, I mean, why not just send some soldiers to kill various wealthy tourists, steal everything they have, and send it to ye olde retirement account?
Thinking of the President (and, by that, I mean the role not “Donald Trump”) as though he’s a regular person with the same rights and rules is wrong. A regular person has the right to sue anyone they want to, for any reason. But a regular person also has the right to receive gifts from Prince Charles whole the President is expected to give them away or refuse them (and traditionally has) because the Constitution bans him from accepting anything from a foreign nation that anyone could perceive as influencing his decisions. Whereas, the President can order Prince Charles to be assassinated and that is sort of “okay” while a regular person attempting the same is just a nutball murderer.
The idea of the role is that it exists for the good of the people. So, in the example of the President having a terrorist killed, that’s completely happy and wunderbar because, clearly, he is acting in his role to serve the people of the country and see to it that they are safe. So long as that is true, to some extent, all is fair. If the President is not able to execute his agenda because Congress is going against him, it’s perfectly reasonable for him to mire them in legal hell or do whatever all else (so long as it’s fully contained within the checks and balances of the Constitution - going outside of that and assassinating Congressmen, or whatever, is not acceptable).
The instant that the President tries to do anything outside of serving the good of the people or, like emoluments, even just do something that looks like it opens the door to serving some interest other than exactly the citizens of the United States of America (which does not include the President nor its officers) and all that dries up. He cannot veto a law because it would negatively impact his business; he cannot ask his soldiers to build him a retirement house on his private land; nor anything. He can’t mire Congress in legal hell, if it’s to protect his personal interest rather than the National interest.
The term “Executive” comes from the idea that the President’s core duty is to see to it that the law is executed.
If he is aware that the legal system can be readily abused to allow people to escape the law, his Oath of Office would require that he work to shut that loophole down. While it’s open, as said, he can utilize it as a mechanism of checks and balances so be it in the national interest. But for him to just leave it open, knowing that it’s there, and be happy that it is - as far as the founders be concerned - would render him unfit for office.
… To some extent. This is an idealized view but, then again, they had their ideal man and they wrote the role for him. Still, I’m sure that they recognized that all people are imperfect and that there would be some duds to hit the role. I don’t think they expected the President to do perfectly live up to the role as that but, I would say, Trump is well past the “dud” mark in terms of Constitutionality.
Julius Caesar was a brilliant and capable leader. The Founders would have voted in favor of the assassins who killed him since the system is, in the long run, more important than the man. We didn’t become the supreme power on Earth through an unbroken chain of genius Executives, nor did the Roman Empire. A good system works better than a good leader.