Proud Boys and Oath Keepers expected at September 18 rally in D.C.

Far right extremist groups, including the Proud Boys and Oath Keepers, are planning to attend a September 18 rally at the U.S. Capitol to demand "justice" for the hundreds of people who have been charged for their alleged roles in the January 6 attack, according to two sources familiar with new intelligence. 

The intelligence is based on chatter on online messaging boards, including right-wing social media sites Parler and Gab. A congressional source and a federal law enforcement source told CBS News that Capitol Police leadership and the House Sergeant of Arms discussed the intelligence during a call Wednesday. Capitol Police and D.C.'s Metropolitan Police are planning an all hands on deck approach to the protest, although the size of the crowd expected at this point is not very large. The intelligence gathered so far suggests 300 to 500 people will attend the event, and some members of Congress have been invited to attend, a federal law enforcement source said. It is not clear whether any members will attend.