An early voting ballot box at the Lancaster County Election Commission office on April 24, 2026. (Juan Salinas II/Nebraska Examiner)LINCOLN — A former Republican state lawmaker and an unsuccessful GOP candidate for Legislature sent complaints this week to Nebraska Attorney General Mike Hilgers asking him to look into the U.S. Senate candidacies of Democrat Cindy Burbank and Legal Marijuana NOW nominee Mike Marvin over allegations that neither of…