Is the United States Senate Filibuster Rule Unconstitutional?

Thomas Geoghegan:

But the Senate, as it now operates, really has become unconstitutional: as we saw during the recent health care debacle, a 60-vote majority is required to overcome a filibuster and pass any contested bill. The founders, though, were dead set against supermajorities as a general rule, and the ever-present filibuster threat has made the Senate a more extreme check on the popular will than they ever intended.

★ Tuesday, 12 January 2010