“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.”
Who knows, understands in depth, has been preserving, protecting and defending the Constitution the most among the candidates?
If the candidates don't have a clue about the US Constitution which is the foundation of this country, how are they going to execute the thing that they take the oath to do faithfully?
To respond to your question, name 10 negotiated and closed International agreements that any US president has negotiated personally.
They don't!
The art of making deals with other countries is called diplomacy. It is carried out by professional diplomats prior to endorsement by national politicians.
In the US, the Secretary of State is the top international negotiator/diplomat. Donald Trump is a master negotiator and would therefore be ideal for Secretary of State, head of the diplomatic corps.
Just look at the Iran deal - it was Secretary of State John Kerry who spent long hours and drove a 'hard bargain' with the Iranians.
Agree, everybody needs to play their position with the same objective to which they SWORE an oath...
Personally I favor the Roman Republics model for dealing with corrupt officials..
CUT OFF THEIR NOSE, PUT THEM IN A BAG WITH A WILD ANIMAL, TIED IT SHUT AND THREW IT IN THE RIVER...
Public hangings for violators of the public trust times millions of impacted voters..
Time to thin the herd and the Pendulum of Divine Justice is swinging our way
Keep the Faith!