'Medicare for all,' Stabenow says

Many liberal lawmakers backed the single-payer plan during initial debates over healthcare reform, and Obama praised the idea on the campaign trail in 2008. The Affordable Care Act did not create that system and did not include a "public option." 

Stabenow hammered opponents of the healthcare law and ongoing attempts by the GOP to obstruct it. "I'm tired of the fights about whether or not it should exist. It does exist. It's changing lives," she said.

The Families USA conference lasts through Saturday in Washington, D.C.

Event organizers said several lawmakers will stop by Thursday, including Senate Health, Education, Labor and Pensions Committee Chairman Tom HarkinTom HarkinDistance education: Tumultuous today and yesterday Grassley challenger no stranger to defying odds Clinton ally stands between Sanders and chairmanship dream MORE (D-Iowa); Sen. Ben CardinBen CardinSunday shows preview: Scaramucci makes TV debut as new communication chief Oil concerns hold up Russia sanctions push Compounds’ fate raised after Trump-Putin talk MORE (D-Md.); and Sen. Sheldon WhitehouseSheldon WhitehouseGore wishes Mikulski a happy birthday at 'Inconvenient Sequel' premiere Live coverage: Trump's FBI nominee questioned by senators Committees vie to be first to question Trump Jr. MORE (D-R.I.). U.S. Surgeon General Regina Benjamin will also be present, organizers said.