I don't really know who he is, allegedly he was a Green Beret and fights under Jackson Submissions, but what I do know is he is:
He is like Brian Stann but better. He has the name of a beloved US President. It simply does not get much more American than that.
The only thing standing in the way of this theory is the fact that he isn't really a top tier fighter but I am sure they will work some magic to make it happen. He happens to be in a division where title shots are given to the most available fighter, regardless of whether they've earned it... (see: Patrick Cote, Demian Maia, Thales Leites, Vitor Belfort probably others)