The rhetoric being employed today betrays both a basic ignorance of what constitutes a 'majority' for voting purposes and an exploitation of that ignorance. Without going into the esoterica of the kinds of questions being voted on, let's try to be clear that the notion that 51 (50%+1) Senators is almost always the minimum required to approve anything is
completely false.
Would it be a surprise to anyone if I said that
26 Senators (or less) could successfully and legitimately be enough to approve an action of the Senate? It's
true, you should know.
Let's first enumerate the language used to specify what constitutes sufficient "Yea" votes to approve an action. The language used includes
- "... three-fifths of the Senators duly chosen and sworn ..."
- "... two-thirds of the Senators present and voting ..."
- "... majority of the Senators present and voting ..."
- "... unanimous consent ..."
- "... two-thirds of the whole number of Senators ..."
- "... majority of the whole number of Senators ..."
- "... majority of the Senators duly chosen and sworn ..."
Now, let's look at Rule VI ...
RULE VI
QUORUM - ABSENT SENATORS MAY BE SENT FOR
1. A quorum shall consist of a majority of the Senators duly chosen and sworn. 2. No Senator shall absent himself from the service of the Senate without leave. 3. If, at any time during the daily sessions of the Senate, a question shall be raised by any Senator as to the presence of a quorum, the Presiding Officer shall forthwith direct the Secretary to call the roll and shall announce the result, and these proceedings shall be without debate. 4. Whenever upon such roll call it shall be ascertained that a quorum is not present, a majority of the Senators present may direct the Sergeant at Arms to request, and, when necessary, to compel the attendance of the absent Senators, which order shall be determined without debate; and pending its execution, and until a quorum shall be present, no debate nor motion, except to adjourn, or to recess pursuant to a previous order entered by unanimous consent, shall be in order. So, assuming a Quorum is present, any action for which approval ("consent") is set at "a majority of the Senators present and voting" may pass with a "Yea" vote of 26 Senators, if all 51 Senators present actually vote. Even more, if some Senators declare themselves "Not Voting," the action can be sustained (approved) by even fewer Senators! When a Quorum is not present and not insisted upon, even fewer Senators may get away with 'consenting' to an action. Only comity and principle preclude abuses of such possibilities.
When folks speak of "Checks and Balances," let's try to give a bit more attention to the word "balances." When 26 Senators can 'consent' to an action, it's not at all 'imbalanced' to insist that forty Senators can effectively preclude such 'consent.' Indeed, the Rules of the Senate are rife with examples where merely a
single Senator can legitimately preclude an action of the Senate, actions so numerous that they occur many, many times each day the Senate is in session.