This LDS Perspectives podcast covers translating the Book of Mormon and a possible setting for it. According to Brant, his research is not presented to prove the Book of Mormon is true but rather to prove it interesting.
He uses several examples from the text of the Book of Mormon that converge with the history of Mesoamerica at that specific time to support his theory. He also lists some false traditions that have hampered our understanding of the relationship between Lehites and indigenous cultures.