Can states make voting systems meddle-proof before midterms?

The scope of Russian meddling in the last U.S. election has been outlined in special counsel Robert Mueller’s indictments and the threat confirmed by heads of U.S. intelligence agencies. What can states do to protect American voters and democracy? Judy Woodruff talks with David Becker of the Center for Election Innovation & Research and Denise Merrill, Connecticut's secretary of state.