Two ghosts stalk the national Democratic Party in its pitiful, 21st century incarnation. One is George McGovern, who taught them that only Republican values matter in a national election. The other is Ralph Nader, who taught them who the real enemy is.
The present hamstrung state of the party is the result of its abject fear of these ghosts, which has given it a permanent moral stammer. A party that doesn't believe in itself is doomed to lose over and over, even if it represents the majority of the people and even - as Al Gore demonstrated in 2000 - when it gets the most votes.
While the ghost of McGovern, who was mauled by Richard Nixon in 1972, is the most deeply ingrained and enfeebling, seeming to guarantee uncritical Democratic support ("we love America, honest") for every cynical Republican military or civil-liberties outrage concocted in the name of national security, the ghost of Nader is the most life-threatening. Its effect is emetic, causing an immediate discharge of rationality among the party faithful at every hint of a challenge from the party's values base. The Nader Effect causes Democrats to upchuck the very medicine that will save it.