A federal court in Utah has overturned the states law against it less than two years ago.
Actually, that’s not entirely true.
The courts did strike down the provisions regarding cohabitation with more than one “wife” at a time. However, the courts also upheld the restrictions on actually marrying more than one person at a time. IOW, you can live with as many women (or men) as you like, but you can only be legally married to one. If you marry another before the first marriage is dissolved, you can still find yourself charged with a crime.
The Wolf