Lawsuit filed over protest outside Trump rally in Phoenix

FILE — In this Aug. 22, 2017 file photo shows smoke billowing after police used tear gas on protesters outside a rally held by President Donald Trump in downtown Phoenix. Two advocacy groups filed an excessive-force lawsuit on Tuesday, Sept. 4, 2018, against the Phoenix Police Department over the conduct of officers during a protest outside the rally. The suit alleges officers deliberately targeted anti-Trump protesters and showed a preference toward Trump supporters. The police department declined to comment on the lawsuit. (AP Photo/Matt York, File)