Thirteen of the 22 people arrested Wednesday during an immigration protest downtown will be arraigned tomorrow at King County Jail on pedestrian interference misdemeanor charges. The Seattle City Attorney’s office says the protesters were blocking streets near the Federal Building at Second Avenue and Madison Street. Eight others who pleaded not guilty to the charges Thursday will appear for a pre-trial hearing July 26 at the Seattle Municipal Court. The City Attorney’s office refused to charged a 17-year-old, because as a juvenile he is under King County’s jurisdiction. The City Attorney’s office is consolidating the cases of those arrested. About 150 to 200 people protested in support of federal immigration reform, causing traffic to come to a halt for several hours.