(Photo by Jacob McAuliffe - KJZZ)

Many polling place lines, like this one at the Arizona Historical Society Museum at Papago Park, wrapped on for hours on March 22, 2016.

National Democratic Party groups and the Hillary Clinton campaign have announced they will file a federal lawsuit tomorrow over Arizona’s marred presidential preference election that forced many voters to wait in long lines to vote.

The suit seeks to block existing Arizona voting laws the plaintiffs say are discriminatory.