Foreign methods of keeping monsters out of presidential office might work with some of the rabble but will not be as effective with those more highly placed in the three branches of our government—especially the judicial.
Thomas Jefferson’s use of Vattel’s “The Law of Nations or Principles of Natural Law” to help write our founding documents: https://www.thepostemail.com/2010/05/03/jefferson-used-vattels-the-law-of-nations-to-write-our-founding-documents/
and http://pixelpatriot.blogspot.com/2015/09/vattel-is-law-part-1.html