(Tom Brenner | The New York Times) Senate Minority Leader Chuck Schumer (D-N.Y.) with House Speaker Nancy Pelosi (D-Calif.) with other Congressional Democrats during a news conference on Capitol Hill, in Washington, on Monday, Sept. 9, 2019. The Democrats called for President Donald Trump to defy the National Rifle Association and get behind legislation, already passed by the House but blocked in the Senate, to expand background checks to nearly all gun buyers.