State Sen. Martin Sandoval, whose district includes part of the southwest side of the city, is a Democrat, counts many powerful Democrats — including Mayor Daley and Ald. Ed Burke — as constituents, but he’s supporting John McCain for president. Rep. Mike Madigan is also one of Sandoval’s constituents, and a General Assembly ally. Progress Illinois wants to know what the Speaker thinks of his friend’s turn to the dark side. UPDATE: Sandoval hasn't endorsed McCain, he's merely entertaining the possibility.