Anti-poverty activists have sued the city of Philadelphia seeking the right to demonstrate during rush hour as the Democratic National Convention opens next month.
The lawsuit says the city has an unwritten ban on demonstrations during the morning and evening rush hours.
The Poor People's Economic Human Rights Campaign hopes to march from City Hall to a park near the convention site in South Philadelphia on opening day July 25. Organizers say the city has granted exceptions for parades and other public gatherings during rush hour.
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The American Civil Liberties Union filed the suit Thursday on the group's behalf.
The city says it has no comment until its law department reviews the suit.
The ACLU of Ohio sued Cleveland earlier this month, alleging the city's rules for protests at the Republican National Convention violate free speech rights.