http://www.nytimes.com/2010/01/11/opinion/11geoghegan.html?ref=opinion&pagewanted=all . . .
The procedural filibuster effectively disenfranchises the vice president, eliminating as it does one of the office’s only two constitutional functions. Yet the founders very consciously intended for the vice president, as part of the checks and balances system, to play this tie-breaking role — that is why Federalist No. 68 so specifically argued against a sitting member of the Senate being the presiding officer in place of the vice president.
Third, Article I pointedly mandates at least one rule of proceeding, namely, that a majority of senators (and House members, for that matter) will constitute a quorum. Article I, Section 5 states in part that “a majority of each shall constitute a majority to do business.” Of course, in requiring a simple majority for a quorum, the founders were concerned about no-shows for a host of reasons — not least of all because the first legislators had to travel great distances by stagecoach.
But the bigger reason for the rule was to keep a minority from walking out and thereby blocking a majority vote. In Federalist No. 75, Hamilton dismissed a supermajority rule for a quorum thus: “All provisions which require more than a majority of any body to its resolutions have a direct tendency to embarrass the operations of the government and an indirect one to subject the sense of the majority to that of the minority.”
It would be illogical for the Constitution to preclude a supermajority rule with respect to a quorum while allowing it on an ad hoc and more convenient basis any time a minority wanted to block a vote. Yet that is essentially what Senate Rule 22 achieves on any bill that used to require a majority vote.
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