Supreme Court

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FILE - This April 20, 2010 file photo shows Navajo President Joe Shirley Jr. speaking to constituents following a tribal Supreme Court hearing in Window Rock, Ariz. Shirley Jr. tells The Associated Press that he will file for the presidency of the Navajo Nation, Thursday Feb. 27, 2014, and focus his campaign on government reform. (AP Photo/Felicia Fonseca, File)

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FILE - This Oct. 15, 2013, file photo shows the Supreme Court in Washington the day the court's justices said they would be reviewing whether or not the Environmental Protection Agency overstepped its authority in developing rules aimed at cutting emissions of six heat-trapping gases from factories and power plants. Monday, Feb. 24, 2014, the Court will hear arguments on the unanimous federal appeals court ruling that upheld the government's unprecedented regulations aimed at reducing the gases blamed for global warming. (AP Photo/Susan Walsh, File)

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FILE - This Oct. 15, 2013, file photo shows the Supreme Court in Washington the day the court's justices said they would be reviewing whether or not the Environmental Protection Agency overstepped its authority in developing rules aimed at cutting emissions of six heat-trapping gases from factories and power plants. Monday, Feb. 24, 2014, the Court will hear arguments on the unanimous federal appeals court ruling that upheld the government's unprecedented regulations aimed at reducing the gases blamed for global warming. (AP Photo/Susan Walsh, File)