A (de facto) veto of a bill by the US President by restricting Congressional action on the bill, as, figuratively, by carrying the bill in his pocket until the deadline for signing it has passed
The retention by the President of the United States of a bill unsigned so that it does not become a law, in virtue of the following constitutional provision Const
a method used by the US President to stop a bill (=proposal for a new law) . The President keeps the proposal without signing it until Congress is not working any more
2): "If any bill shall not be returned by the President within ten days (Sundays excepted) after it shall have been presented to him, the same shall be a law, in like manner as if he had signed it, unless the Congress by their adjournment prevent its return, in which case it shall not be a law
(in the USA) method for vetoing a bill in which the President simply does not sign it (when Congress is not in session - if the bill is not signed within 10 days it is automatically killed)