You can continue whining about Nader if you want to, but at least realize the following (from http://www.gp.org):
The Supreme Court Spoiled:
Al Gore won the 2000 election. George W. Bush became President when a biased US Supreme Court allowed election manipulation by Florida Republicans.
Al Gore Spoiled:
Gore ran a weak campaign with no clear message. He failed to defeat Bush in the debates and even lost his home state of Tennessee. Millions of Democrats voted for Bush compared to the few hundred thousand who voted for Nader.
Democratic Senators Spoiled:
When the Black Caucus challenged Bush’s election victory in January 2001, not one Democratic Senator stood up in support. Senate Democrats failed to push for an investigation of the Florida vote debacle.
The Democratic Party Spoiled:
For many years, Democrats never objected when officials removed African American and other voters from the voter rolls in Florida and other states. Why didn’t the Democrats sue when 90,000 Florida voters were disqualified earlier in 2000? Why were Democrats (including Gore) silent about disqualified votes in the weeks after the election?