The Constitution says whatever the judges say it says today. It could say something else tomorrow. And unless you are the 9 supreme court justices what you say it says isn 't worth a warm pitcher of spit.
The Supreme court in Marbury Vs Madison said the constituion says what the justices say it says. And they can determine what it says in any old penumbra they care to look under.
The president of the United States can do anything the people will support including puting american citizens in concentration camps in WWII or suspending Habeas Corpus as Lincoln did in the civil war.
The Democracy Advocates (Democrats) converted us into the Democracy we have been ever since.
However, this is where the Declaration of Independence kicks in. We may be in practice ruled by SCOUTUS, and other branches independent of the Constitution, but such rule is illegitimate.
All political power is held by the People and exercised through the Consent of the Governed. You can read the rest of the DoI, and get the picture.