Our current President may have gotten elected by promising to “drain the swamp,” but when it comes to corruption, DC has nothing on Albany, NY’s long-standing reputation for misdeeds. But Sharr White’s riveting new play “The True,” set in 1977 during the penultimate mayoral campaign of Erastus Corning II’s (Michael McKean) 40+ years in office, brushes aside the corruption whispers.  Instead, the picture painted by his chief fixer and confidant, Polly Noonan (Edie Falco), is a Democratic Party with heart, that cares. And expects loyalty in the voting booth in return.