A federal appeals court today said Hillary Clinton’s 2016 campaign and a liberal super PAC crossed federal election lines when they flaunted their coordination in a multimillion-dollar effort to defend the Democrat in her losing bid against Donald Trump.

In the landmark decision, the U.S. Court of Appeals for the District of Columbia Circuit said Clinton and the super PAC Correct the Record improperly used an “internet exemption” to sidestep other restrictions to set up a “Benghazi Hearing War Room” and conduct a witch hunt of critics without reporting it as a campaign expense.