A conservative advocacy group told the Ninth Circuit that an Arizona law intended to shed light on dark money in campaign finance violates donor privacy.

President Donald Trump’s controversial move to end birthright citizenship for some immigrants became a roadblock at the ...

Arizona will have total control over regulation of underground wells to store carbon captured from industrial facilities, even as environmental groups have been urging the EPA to halt approvals of the ...

One of the Trump administration’s latest efforts to militarize the U.S.-Mexico border suffered repeated setbacks Thursday when a federal judge tossed out a dozen charges alleging that people illegally ...