A week before the General Assembly is set to return to Annapolis to consider an (as yet undefined) plan to expand gambling, David Cordish, the developer of the state's largest casino, has issued his list of demands for the legislation. If the state authorizes a sixth casino in Prince George's County, as Gov. Martin O'Malley and Senate President Thomas V. Mike Miller have proposed, Mr. Cordish wants a 12-percentage point cut in his slots tax rate (and a more modest reduction for everyone else). He wants table games (as do Messrs. O'Malley and Miller) but at a lower tax rate than a state work group on gambling expansion recommended. He wants Internet gambling, taxed at 10 percent, a delay in the opening of a Prince George's casino until 2017, and a moratorium for 10 years on further gambling expansion, among other things.