Federal legislation was introduced Tuesday to try to stop the Tohono O'odham Nation from building a casino near Glendale.
The bill sponsored by U.S. Rep. Trent Franks, R-Ariz., would bar casinos on land in metro Phoenix that's made part of the American Indian reservation system in 2013 and afterward.
The federal government declared the Tohono O'odham Nation property near Glendale a reservation, but pending litigation prevents the land from being made part of the system.
A similar bill by Franks last year cleared the House, but never got a vote in the Senate.
The tribe received $30 million to replace nearly 10,000 acres of ancestral reservation land damaged by a dam, and it bought the land near Glendale in 2003.
The Tohono O'odham Nation already has the second largest reservation in the nation, mostly south and west of Tucson, and it operates three casinos now.