A Supreme Court ruling that upheld two provisions of Arizona voting law that restrict how ballots can be cast will make it more difficult for Native Americans in the state’s tribal communities to vote, Navajo Nation activists say.Allie Young, founder of Protect The Sacred, said Friday that the court ruling would be a setback after organizers worked hard to register and assist many Native Americans last year who hadn’t voted in previous elections.”It’s very disappointing,” Young said. “I’m concerned that we have built so much momentum around making our voices heard and this will only discourage us.”