Bro. Richard, I believe that God introduced and sanctioned polygamy from the beginning. Bro. Branham said so and even taught that polygamous marriage is permitted among believers.
That Bro. Branham taught polygamy is a lie. Preachers who have marital problems or extra-marital affairs are usually the ones who seek to find some statements of Branham to justify their action of taking another wife. The one sermon most quoted to justify their action is "Marriage and Divorce". How a preacher can twist and misinterpret Bro. Branham's simple teaching on the subject is beyond me. And did God really introduce polygamy? Did He contradict His Original Word on the sacrament of One Man, One Wife? [Read Polygamy]