The FCC's repeal rolled back so-called "Title II" regulations that classified the internet as a public utility and which, among other things, required internet service providers (ISPs) to treat all of the data traveling on their networks equally.
Net neutrality is the idea that all information should be able to pass freely through internet servers. The move was pretty widely regarded as being bad, with FCC chairman Ajit Pai being singled out in particular for vitriol.
The FCC previously said that parts of the repeal order would take effect on April 23. Recipients, including people who have been here for twenty years and the parents of over 50,000 American-born children, will now have to choose between remaining in the U.S. without legal status or returning to one of the world's most unsafe countries.
"You're either for a free and open internet or you or not", he said.
Among those who have endorsed the initiative are World Wide Web inventor Tim Berners-Lee and Democratic FCC commissioner Jessica Rosenworcel.
"The FCC is on the wrong side of history, the wrong side of the law and the wrong side of the American people", Rosenworcel said in a statement released Thursday.
The Senate is expected to take up a resolution to overturn the FCC action Wednesday.
Following Thursday's FCC announcement, Markey wrote on Twitter: "the Senate must act NOW and pass my resolution to save the internet as we know it". The House seems supportive, too, so there's a reasonable chance net neutrality could get a second chance at life.
There has been mounting concern that even if the movement is successful, it could be blocked by President Trump if he chooses to veto the bill entirely.
Senate Democrats cited a poll by the University of Maryland's Program for Public Consultation that found 86 percent of respondents opposed repealing net neutrality rules after a short briefing on them.
"Americans are pleading for Congress to restore the FCC's net neutrality rules and now is the ideal time for lawmakers to act by voting for the CRA resolution that overturns the FCC's 2017 repeal".
In addition to pushing for the CRA's passage, open internet advocates have emphasized a number of other strategies and priorities for ensuring a truly neutral net, particularly with an eye to the long term.
Democrats have said they believe the issue would be key in November's midterm congressional elections, especially among younger internet-savvy voters.
Coffman said the "frequent regulatory fluctuations" of the FCC is inhibiting broadband innovation and expansion.