The Chargers have spent the week furiously trying to put together an initiative that would raise the hotel-room tax to fund construction of a new convention center and stadium. A big wrench has come into play: a bombshell court decision that would lower the bar for stadium measures to a simple majority vote.

San Diego attorney Charles Black worked with the city, the Port of San Diego and the Convention Center on planning a new waterfront expansion to the San Diego Convention Center. Now, he’s also working for Fifth Avenue Landing, the company that holds the lease to the land vital for that type of expansion site. Councilman David Alvarez says that violates standards for attorneys that discourage working both sides of a deal. Black and the city say those standards don’t apply here.

A new measure being pushed by Cory Briggs and Donna Frye would remake downtown and the city’s hotel-room tax system unlike any proposal in the decade-plus since two proposals to increase the tax failed at the ballot box. The proposal seems to have left San Diego’s elite tongue-tied. Why? Well, one part of the measure is innovative, if not genius. It’s the same part, though, that’s legally shaky.