WASHINGTON DC, UNITED STATES (REUTERS) - Democratic Senator Bernie Sanders slammed Republicans on Wednesday (Sept 13) as he unveiled legislation that would expand the Medicare health insurance program for the elderly to all Americans.

"To my Republican colleagues, please don't lecture us on healthcare," Mr Sanders said at an event on Capitol Hill. "You, the Republican Party, have no credibility on the issue of healthcare."

Th bill introduced by Sanders, Medicare for All Act of 2007, is backed by at least 15 Democratic Senators, many of whom joined him at the event.