By Elise Viebeck - 01/31/13 03:10 PM EST
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 Harkin (D-Iowa); Sen. Ben Cardin (D-Md.); and Sen. Sheldon Whitehouse (D-R.I.). U.S. Surgeon General Regina Benjamin will also be present, organizers said.