Democrats suggested today that Senator John McCain may choose Sheriff Roscoe P. Coltrane of Hazzard County, Georgia, as his running mate. Coltrane, despite being a fictional character from a nonexistent county, is widely discussed in Democratic circles as being a tough on crime conservative with a long record of executive experience. "Coltrane is causing fits among many key figures in our party," said one Democratic operative, citing both Martin Sheen's advisor from The American President and Martin Sheen's ex-president from The West Wing.