Arizona lawmakers passed a historic Colorado River drought deal Thursday afternoon, about seven hours before a midnight deadline set by the federal government. Gov. Doug Ducey promptly signed the legislation, clearing the way for Arizona to join in the three-state Drought Contingency Plan together with California and Nevada. “There’s a lot more work to be done to ensure that Arizona is prepared for a drier water future,” Ducey said as he signed. A crowd of policy advisers and lawmakers applauded in the old state Capitol building. He said the deal represented “the culmination of years of discussions” and called it a “historic bipartisan achievement.”