 Both principles are highly plausible. (P1) is plausible because being true is a property and there must be something that has a property in order for that property to be instantiated. So, had it been that a given proposition were true, then there must have been something — namely, that proposition — that would have had the property of being true. (P2) states the intuitive truth conditions of (7), being an instance of the modalized propositional equivalent of the Tarski truth-schema s is true iff s. But these principles seem to entail that, if (7) is a singular proposition, then it is not possibly true. For suppose it were. Then there is a world w in which (7) is true. By (P1), (7) exists in w. But then all of its constituents exists in w as well, as a complex does not exist in a world unless all of its constituents exist in that world. But then George Bush exists in w. So, by (P2), (7) is not true in w, which contradicts our original assumption that it is true in w. So, either (7) is not a singular proposition or it is not possibly true.