Canadian Passports Being Rejected At The Border

Without posting a bunch of links (people can look that up for themselves) there's a bunch of people being denied entry in the United States holding valid passports from Canada. One such woman was from Morocco who lived in Canada for twenty years and came across regularly to shop and visit family in Connecticut. Another an athletic student.

I'm sure there's plenty more we may or may not hear about. The point is this. How far is this nonsense going to go?