Members of Congress and law enforcement are bracing for potential security threats on Sept. 18 when a “Justice for J6” rally is planned to support the more than 570 people charged with crimes related to the Jan. 6 attack on the Capitol. The Capitol Police are expected to present their security plan to the Capitol Police Board this week, according to a congressional source, while the Metropolitan Police Department is also expected to ramp up its presence for the planned rally near the Capitol’s west front. The group organizing the rally, Look Ahead America, is led by Matt Braynard, who...