Got any evidence for that claim?When Obama placed his hand on top of the Koran with the Bible underneath during his inauguration it said everything you needed to know about him.
Keith Ellison, yes, but it's been pretty well debunked for Obama. See https://www.snopes.com/fact-check/obama-used-quran-for-oath/ , https://www.business2community.com/...dential-oath-quran-bible-false-claim-01761247 , and any of several others.