BIRMINGHAM, Ala. — Emboldened and proclaiming victory after a bloody weekend in Virginia, white nationalists are planning more demonstrations to promote their agenda following the violence that left a woman dead and dozens injured. The University of Florida said white provocateur Richard Spencer, whose appearances sometimes stoke unrest, is seeking permission to speak there next month. And white nationalist Preston Wiginton said he is planning a “White Lives Matter” rally at Texas A&M University in September. Also, a neo-Confederate group has asked the state of Virginia for permission to rally at a monument to Confederate Gen. Robert E. Lee in...