A federal appeals court on Wednesday backed a lower court’s ruling that a Kansas voter identification law crafted by former Secretary of State Kris Kobach is unconstitutional and violates the National Voter Registration Act. The law heralded by Kobach took effect in 2013 and mandates that people provide documentation proving U.S. citizenship before being allowed to register to vote. The decision from the 10th U.S. Circuit Court of Appeals comes after a federal district court struck down the law on the same grounds. The judges said the state had failed to provide convincing arguments in its appeal that Kansas was...