House Democrats hold sit-in for gun control

U.S. Rep. John Lewis (D-Ga.) speaks to gun control activists outside the Capitol as House Democrats stage a sit-in on the House floor.

(Alex Wong / Getty Images)

June 22, 2016 9:31 PM PT

House Minority Leader Nancy Pelosi (D-San Francisco) with Brady Campaign President Dan Gross at a news conference on gun control.

(Alex Wong / Getty Images)

Rep. John Lewis (D-Ga.) walks down the Capitol steps as House Democrats continue a sit-in on the House floor.

(Alex Wong / Getty Images)