Former president Donald Trump and his allies like Sen. Lindsey Graham and other Republicans are “happy to change the rules” before an election as long as they’re the ones that benefit, The Bulwark’s Will Saletan wrote in an article critical of the GOP’s recent attempt to change Nebraska’s electoral system. “All they care about is winning,” Saletan wrote in an article published Wednesday. “And the proof of their insincerity is what they just attempted in Nebraska.” Saletan, a staunch critic of Trump since he burst onto the political scene in 2015 who has described him as “a mean, angry, vicious…