As you can probably guess, the whole idea of ‘debt-free college’ comes from the Warren wing of the Democratic Party.

Phillip Rucker of the Washington Post reported.

Liberal Democrats pressure Clinton to advocate ‘debt-free college’

Liberal leaders are pressuring Hillary Rodham Clinton advocate a national plan for “debt-free college” in her presidential campaign, part of a broader effort to convince the Democratic front-runner to embrace pillars of Sen. Elizabeth Warren’s progressive agenda.

The push comes as prominent Democratic senators and House members plan to introduce resolutions calling for the elimination of student debt at public colleges and universities on Tuesday, while progressive activists have scheduled events at 10 college campuses — all in a coordinated push to promote debt-free college as a major issue in the 2016 presidential race.

Although Clinton is not expected to unveil a detailed policy agenda until later this spring or summer, she mentioned rising student loan debt as a focus of her campaign during her visit to Iowa last week. “There’s something wrong when students and their families have to go deeply into debt to be able to get the education and skills they need in order to make the best of their own lives,” Clinton said at a Kirkwood Community College in Monticello.

The debt-free college effort is being coordinated by the Progressive Change Campaign Committee, which says it represents “the Elizabeth Warren wing of the Democratic Party” and has been trying to pull Clinton to the left on a variety of economic and other issues.