why would a president not sign a bill
Pocket veto Because a pocket veto cannot be overridden, it is sometimes used to describe situations where either one person, or a small group, can override the will of a much larger group without consequence. For example, when the California Supreme Court was answering the certified question of intervenor standing in the case of Perry v. Brown (known as the Proposition 8 case), one of the justices expressed concern that denying appellate standing to initiative proponents would mean that the governor and state attorney general would "essentially get a 'pocket veto'".[17]