PROVIDENCE, R.I. — Spurred on after last week's dramatic sit-in on the House floor to demand a vote on gun legislation, U.S. Reps. David Cicilline and James Langevin held a local sit-in Wednesday afternoon to "keep the momentum going."They found company, as more than a hundred people packed into the auditorium at the Public Safety Complex to join them for the hour-long sit-in.