The Associated Press SCHURZ, Nevada (AP) — Members of the Walker River Paiute Tribe have watched the boundaries of their land recede over time along with the waters of the lake that are central to their identity, threatening the cultural symbol that gave the tribe its name — Agai Dicutta, or Trout Eaters. Not wanting to cede their voice, tribal leaders have been making a push for expanded voting rights. That effort includes filing a lawsuit on behalf of all Nevada tribes seeking polling places on tribal lands and access to early voting. “Tribes shouldn’t have to keep filing lawsuits just to vote on their own lands,” said Elveda Martinez, 65, a tribal member and longtime voting advocate. “It should be more accessible.” The state has now granted the Walker…