"I do solemnly swear (or affirm) that I will faithfully execute the Office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States."
The above sounds familiar, right? It should because all Presidents up to and including Donald Trump have been required to take the oath on assuming athe Office of President of the United States of America. Trump did, didn't he? I don't know because that was the day I tried to induce a four year coma. It did not work. Anyway, you will not that these words say that the President will to the best of his ability, preserve the constitution, protect the constitution, and defend the constitution. The founding fathers meant the whole of the Constitution and not just pick and choose the ones you like. Now the Constitution is not perfect so they allowed for the amending of the constitution when required which we have done over the years. One of those Amendments was not thought out to well and was repealed by a later one. (The 19th repealed by the twenty first) But let us focus on the constitution and the first ten amendments commonly called "The Bill of Rights."
When it comes down to determining if a law or court decision is in keeping with the Constitution, the Bill of Rights is normally what is used as the determining factor unless outlined in the Constitution itself. For over 200 hundred years it hasn't failed this country, in fact it help right wrongs done to many by the government. Now the document that we value most is under attack by a man sworn to protect it. A man who wants to change the way congress, the judiciary, and the executive branch operate because he cannot work within the Constitution because of his ignorance and personal beliefs.
Our system was designed by our founding fathers with a set of checks and balances to ensure the government does not turn into some tyrannical state dominated by one branch. (Sorry second amendment people, the intent of the second amendment was to prevent invasion. The rest of the constitution and amendments are there to prevent a tyrannical dictator from taking over.) Now after 44 other presidents who have taken the oath we have one who wants to weaken both the legislative and judiciary while strengthen the executive branch. How is this in keeping in with the presidential oath of office? No, he is definitely not trying to preserve the constitution, he wants to gut it. His administration openly attacks the the first amendment, every aspect of it. He definitely is not defending the constitution. Now ask yourself with the evidence we have seen so far, is Trump violating his oath of office?