Ralph Nader Sues Democrats for Thuggery

Fox News reports that Ralph Nader is filing a lawsuit against the Democrats over the 2004 election:

Among other things, the lawsuit alleges that the DNC tried to bankrupt Nader’s campaign by suing to keep him off the ballot in 18 states. It also suggests the DNC sent Kerry supporters to crash a Nader petition drive in Portland, Ore., in June 2004, preventing him from collecting enough signatures to get on the ballot.

Given the use of Blockers by liberal groups to stop direct democracy, this would not be out of character. Nor do I doubt that frivolous lawsuits were filed. The one thing I question is the timing. If Nader had a legitimate cause of action, why is he only suing 3 years after the election?