At this point, from what is publically "known", Barry is an outright admitted multinational. He was born a, or has been a, British subject, a Kenyan citizen, possible U.S. citizen and possible Indonesian citizen.
It's a slap in the face to our framers to think they would have agreed that a multi-national was considered a natural born Citizen. The terms are mutually exclusive.
The argument is akin to the claims made by the left during Clinton's impeachment that the president has the authority to pardon himself.
In both cases the left is simply playing to the ignorant.
This issue is coming to a head, and the left is preparing their ignorant base for civil unrest.