Bill Ledbetter is the pastor of Fairview Baptist Church in Oklahoma, wingnut, creationist and proponent of David Barton-style pseudohistory and Christian Nation nonsense. As such, he has for instance been invited to serve as the weekly chaplain for the Oklahoma legislature, and his 15-minute sermon there sums up his lunacy pretty well (discussion here and here and here; follow the links if you for some reason want to hear the original – it is gloriously insane): Ledbetter started off by claiming that “America is the only nation in history that’s been under one governing document her whole history,” which is false...
Full glorious lunacy here: Encyclopedia of American Loons - #1880: Bill Ledbetter