Embattled Washington Mayor Vincent Gray called in a notorious predecessor, Marion Barry, to prop up his reelection campaign Wednesday afternoon. Gray got exactly what he deserved. “Vince Gray,” Barry told a modest crowd in a church basement in Southeast Washington, “is a leader with a solid crack record.” The self-proclaimed mayor for life caught this Freudian slip. “Track record,” he corrected. Barry, now a 78-year-old City Council member in failing health, is, famously, the one with the crack record. Gray’s problems are of the campaign-finance variety. His lawyer has said he expects the mayor to be indicted in a federal...