>>>>believe it or not, Senators and Congressmen are some what immune from most ordinary civil cases directly related to their work in Congress.
Looks like they may not even be immune to civil charges from todays news:
http://www.freerepublic.com/focus/f-news/1559331/posts?page=13#13
Two leading civil rights groups plan to file lawsuits Tuesday against the Bush administration over its domestic spying program to determine whether the operation was used to monitor 10 defense lawyers, journalists, scholars, political activists and other Americans with ties to the Middle East.
(snip)
Are they planning to sue Congressmen or Senators
or just the Governement?
The difference is crucial.
If you really want to push this issue you'll have find a lawyer that will be willing to sue the government for failing to indite Kerry for those crimes he commited against the Constitution as well as for failing to remove him from office as per the applicable statues of the Constitution.
Failing to protect the public from threats to the nation seems to a reasonable reason to sue the government.
Or at least it is equal in concept to the tactics used by liberals to shut down NSA monitoring of Overseas telecommunications meant to protect us.