> Super PACs... are Sanders scourges. “I do not have a super PAC, and I do not want a super PAC,” he declared to cheers after trouncing Clinton in the 2016 New Hampshire primary. One catch: Sanders can’t control whether super PACs, which are legally separate entities from candidates’ campaign committees, support him. And Sanders indeed received some super PAC support during his 2016 bid, most of it from National Nurses United, which spent almost $4.8 million on pro-Sanders ads and communications.

> In August 2016, shortly after he ended his 2016 presidential bid, Sanders launched Our Revolution, a 501(c)(4) “social welfare” nonprofit organization that says it aims to “revitalize American democracy, empower progressive leaders and elevate the political consciousness.” Our Revolution is overtly political — it’s been openly advocating for Sanders himself to again seek the presidency — and isn’t fully transparent about who funds it. For example, Our Revolution lists the first and last names of its contributors who give $250 or more per year — but that’s it, even for donors who give six figures. It’s difficult to accurately identify donors with only this information. Among Our Revolution’s name-only donors: “Ben Wilson,” “Sarah Brown,” “John Allen” and “Anonymous Anonymous.” Sanders himself has long run his political campaigns on a platform of political transparency. “We actually provide more information on our donors than is legally required,” Our Revolution spokeswoman Diane May told the Center for Public Integrity. “Out of respect for our donors, we do not share the exact contributions and some people do ask to remain anonymous.”

> An “international syndicate of cyber-thieves” stole about $242,000 from Our Revolution in December 2016, the group disclosed in November. “Our Revolution worked with the Federal Bureau of Investigation, Our Revolution’s counsel and an independent cyber-security consultant in an effort to identify the thieves and to recover the funds but, unfortunately, these efforts were unsuccessful,” it wrote to the IRS.

> In 2016, Sanders twice asked federal regulators to grant him 45-day extensions for filing a mandatory personal financial disclosure for presidential candidates. The practical implication? Sanders avoided revealing details about his own assets and liabilities in May 2016, when he was still running for president. By the time August 2016 came around and Sanders had extinguished his two extensions, he had dropped out of the 2016 presidential race and declined to file a presidential personal financial disclosure form at all, though he filed a separate, mandatory disclosure with the Senate months later.

> Sanders routinely ranks among the U.S. Senate’s less wealthy members. But the fame Sanders gained from his 2016 presidential campaign also boosted his own bottom line. Sanders’ most recent U.S. Senate personal financial disclosure, filed in May 2018, indicates he in 2017 earned more than $880,000 in royalties stemming mostly from four separate book deals. That amount includes $539.47 in royalties related to the sales of “We Shall Overcome,” Sanders’ 1987 folk music album, which The Guardian concluded is “so bad, it’s good.”