The Hill – The National Governors Association (NGA) is opposing legislation from Sen. Lindsey Graham (R-S.C.) and Rep. Jason Chaffetz (R-Utah) that would ban online gambling. “The nation’s governors are concerned with legislation introduced in Congress that would ban online Internet gaming and Internet lottery sales because it challenges the federal-state relationship,” the governors wrote in a letter to congressional leaders. Backed by billionaire casino owner and conservative donor Sheldon Adelson, Graham and Chaffetz introduced twin bills in March that would ban online gambling. They argue this practice would be harmful to children who may have access to such sites…