David Williams' colossal failure as a candidate cut across every demographic segment in Kentucky. Over a fifth of tea party voters say they will reject him today and vote for Democrat Steve Beshear. Republicans can't blame their mess on Gatewood Galbraith splitting the vote, either. If anything, Galbraith may pull more votes from Beshear than Williams.
If liberals are successful in using muscles they haven't flexed in 40 years, the Democratic Party will find itself as divided as the Republican Party is today. Whether that is good or bad is a matter of perspective.