Sure - AFTER there’s a court (not just Supreme Court, ANY court) decision on it.
But until there is, the president MUST abide by the Constitution as he/she sees it.
OF COURSE he is guided by his own judgement! He couldn’t do his job otherwise. The courts don’t advise him on the legality of his actions. He must decide that himself, just like anyone else.
Yes - only AFTER there’s a court decision. But if there hasn’t been one, or nobody sues, the president must decide what is constitutional or not. Obviously. Just like Congress must do so when making laws.
It doesn’t work that way. The Supreme Court does not make advisory opinions. It only considers actual disputes - so it must wait until someone sues or appeals a criminal conviction to consider the legality or constitutionality of a law or action by the president.
This was established way back in 1793 when Chief Justice John Jay refused to give a requested advisory opinion to President George Washington.
http://courses.missouristate.edu/ftmiller/letteradvisoryopin.htm
So no, a president cannot ask a court to decide - he must decide for himself what the Constitution says and how best to follow it.
Again, only when they rule, and they only rule when a case comes before them. Otherwise, the other branches have equal responsibility for upholding the Constitution, and therefore equal responsibility for deciding what it means.
The courts only get the ultimate say, sometimes, because they settle most disputes about it. They get the final say. But only in some cases, and not immediately.
The president, nor Congress, simply couldn’t do their jobs without interpreting the Constitution.