Billionaire Ronald Perelman, who is the chairman and largest stockholder of lottery and slot machine giant Scientific Games Corp., plans to support the presidential bid of South Carolina Senator Lindsey Graham, despite the Republican candidate’s backing of legislation that would ban Internet gambling. Scientific Games, which is headquartered in Las Vegas, has a large interactive gaming division that operates online lotteries in the U.S. The company provides products to 39 of the 44 U.S. state-run lotteries and to 50 lottery countries. Last year, Graham and a Utah congressman to introduced legislation to ban online wagering in the U.S. The move...