Three members of the D.C. Council have now called on Mayor Vincent Gray to resign from office. And if Gray persists in refusing to speak publicly about the campaign finance scandal that has now completely engulfed his administration, he probably should.

This week, the U.S. Attorney for the District of Columbia revealed that Gray’s 2010 campaign was aided by an illegal $650,000 shadow campaign. The secret effort, allegedly financed by a businessman whose firm enjoyed a $300 million contract with the District of Columbia, furnished the official Gray campaign with canvassers, drivers, yard signs, T-shirts, hotel rooms, banners, posters, laptops, consultants and other supplies. Three of Gray’s former aides have now pleaded guilty to felonies related to that election.