Perhaps a worked example would make that clearer. Suppose a bill has clauses a, b and c.

Bill is so opposed to clause a that he will be vote against the bill, but likes b and c.
Ben likes clauses a and c, but b is a no-go
Little weed likes a and b, but will vote against because of c.

So in this situation each of a, b and c has a 2/3 majority but everyone votes down the bill.


That is the risk we are taking.