April 03, 2026
A Ninth Circuit panel has upheld a lower court's dismissal of a challenge to former President Joe Biden's proclamation that established an Indigenous site in the Grand Canyon region as a national monument, saying that any claims of economic harm stemming from future higher energy costs are too speculative.
January 28, 2025
A federal district court judge dismissed the Arizona State Legislature's challenge to former President Joe Biden's proclamation that established an Indigenous site in the Grand Canyon region as a national monument, saying the lawmakers failed to show how the order would harm the state's mining revenue-related interests.
September 30, 2024
The Arizona State Legislature fired back at Democratic Gov. Katie Hobbs' attempt to dismiss its lawsuit seeking to upend the Biden administration's creation of a national monument on an Indigenous site, defending its alleged injuries as "concrete and imminent."
September 10, 2024
The state of Arizona can intervene in a fight over the Biden administration's creation of a national monument on an Indigenous site, but groups of tribes and conservation organizations aren't allowed in the suit, at least for now, a federal judge ruled Monday.
July 17, 2024
The Arizona Legislature is fighting a bid by the Biden administration to dismiss a challenge to a presidential proclamation that established an Indigenous site as a national monument in the Grand Canyon region, arguing that the state's constitution gives the lawmakers power over state trust lands.
July 15, 2024
A sixth-generation Arizona rancher is fighting a bid by the Biden administration to dismiss litigation challenging a presidential proclamation that designated an Indigenous site in the Grand Canyon region a national monument, arguing the order subjects him to a "regulatory regime" he must comply with to enhance his property.
June 25, 2024
The Arizona State Legislature says Gov. Katie Hobbs and Attorney General Kris Mayes can't show that they have an interest in lawsuits against President Joe Biden's proclamation designating an Indigenous site in the Grand Canyon region a national monument and they shouldn't be allowed to intervene in the litigation.
June 11, 2024
The state of Arizona wants to intervene in a lawsuit by its Republican House and Senate lawmakers that challenges President Joe Biden's proclamation designating an Indigenous site in the Grand Canyon region a national monument, arguing that the legislative body lacks authority to assert those claims in federal district court.
June 04, 2024
The Biden administration is asking a federal district court to dismiss lawsuits by the Arizona Legislature and a rancher that look to undo the national monument designation of an Indigenous site in the Grand Canyon region, arguing the lawmakers lack standing to challenge the Antiquities Act as unconstitutional.
May 16, 2024
The Arizona Legislature is fighting bids by a slew of conservation groups and tribes to intervene in two lawsuits in federal court that challenge a Biden administration proclamation designating an Indigenous sacred site in the Grand Canyon region as a national monument.