It’s been six months since FCC chairman Ajit Pai officially began the rollback of the Title II net neutrality order — and progress has been slow. The new rules finally entered the federal register in February, and they’re already facing a number of legal challenges. While some net neutrality advocates dig in for a prolonged court battle, there’s a separate front opening up in Congress that could prove far more effective. On May 9th, Sen. Ed Markey (D-MA) will introduce a Congressional Review Act resolution to roll back Pai’s order completely. It’s a long shot, but if it works, it would be faster and more effective than any court ruling, completely restoring Wheeler’s 2015 order.

The plan relies on some unusually arcane congressional procedure, so we’re running down all the biggest questions around Markey’s plan and laying out exactly what it would take for Congress to reinstate net neutrality.