First, the Democratic party has not won a majority since 1976.
Second, there is the a greater problem with the lefties in the Democratic party. There was the Al Gore of 1988, who was substantially to the right of the Al Gore of 2000. There were moderate Democrats like Joe Lieberman (2004) that didn't do nearly as well as John McCain (200). The GOP has done a better job of keeping the extreme right, Bauer, Buchannan, and Gram, from getting the nomination that the Democrats have of getting the extreme left from playing a major role, e.g. John Kerry.
Amen, Clinton could never had been elected in 1992 without Perot
Well said