A cadre of progressive organizations are urging those opposed to U.S. involvement in the Syria crisis to join their candlelight vigil Monday night just steps from the Capitol.

The demonstration, coordinated by MoveOn.org, CREDO Action, Progressive Change Campaign Committee and Win Without War, is expected to take place beginning at 7 p.m. opposite the Cannon House Office Building.

Those hoping to add their voice to the choir of naysayers can sign up here.