Amid reports that Capitol rioters included some police, no local agencies report investigations of staff. Portland-area police agencies say they are "unaware" of local officers attending the D.C. rally that turned violent on Jan. 6, with a mob breaching the U.S. Capitol in what may have been an attempt to help overturn President-elect Joe Biden's electoral victory. However, both the Portland Police Bureau and the Multnomah County Sheriff's Office did not immediately respond on Saturday, Jan. 9, to questions about whether any further investigation would take place. It's unclear whether the U.S. Constitution's protections of political activity could complicate investigations based on mere attendance, since the event began with a standard political rally, judging by media accounts.