A bible isn’t even necessity. And “so help me God” is not part of the oath. Carson needs to do some homework.
Look up the word "should"
Do YOU think the president "should" be sworn in on a book that is antithetical to the oath the person is taking?
Do YOU think the president "should" be sworn in on a stack of Mein Kampfs?
This country was founded on Judeo-Christian principles and English common law. Not Sharia law, Hindu, Buddhist, Shinto, Mandarin, New Guinea Headhunter, etc., etc.
That’s a fact.
The fact that millions of Americans ignore, deny, or are actively working to destroy those principles is why this country(and Western Civ in general)is in such a state of decline.
Trolling along?