Rep. John Lewis on Democrats' gun control sit-in, Brexit
Georgia Congressman John Lewis vows to battle on, after this week's historic Congressional sit-in over the gun control stalemate. The civil rights pioneer joined fellow Democrats in a 25-hour protest. But House Speaker Paul Ryan says it was nothing more than a stunt. Rep. Lewis joins "CBS This Morning" from Washington to discuss why he felt he had to "dramatize" the issue and make it "plain" for the American people to see.