washington u.s. house representatives speaker paul ryan say thursday options consider possible discipline house democrats protest hold house floor call action gun-control measure democrats already reject republican gun bill warn protest republican-controlled house appear head renew discord gun restrictions follow june 12 mass shoot gay nightclub orlando florida ryan speak news conference previously say house would vote week measure intend keep gun hand people government suspect involvement violent extremism long clear vote might hold democrats say republican-backed legislation inadequate authorities would three days convince judge gun sale block house speaker ryan options table democrats gun sit-in