An attorney for the initiative says the lawsuit is likely to fail because opponents are on thin legal ground.
The suit was brought by 13 groups and individuals including Maricopa County Attorney Bill Montgomery and Yavapai County Attorney Sheila Polk.
Illinois expands its MMJ program, New York patients' slim options get even slimmer, and how exactly will Alaska get cannabis to consumers?
Massachusetts' highest court on Wednesday cleared the way for a November ballot question on legalizing and regulating recreational marijuana.
Arizona is on the verge of full legalization. What (or who) is standing in the way?
Supporters of a proposal that could make Massachusetts the fifth U.S.