finally tonight, the high stakes in the 2016 election. today house minority leader nancy pelosi and fellow democrats sounded the alarm, warning of new republican attempts to dismantle core social programs. we've seen those attacks from republican candidates, like jeb bush, who talked about phasing out medicare. it would reverse a half century of progress. tomorrow marks 50 years since president lyndon johnson signed medicare and medicaid into law. landmark programs that have helped millions of americans. >> we must not allow the promise of medicare and medicaid to be undermined, or be betrayed.