Removed this, as it doesn't really fit the trope at all:
It isn't so much defacement as unbelievably triumphalist, but Newt Gingrich suggested making the Moon into the 51st state of the Union when the USA had 13,000 colonists there (so, not in Newt's lifetime then). This is illegal under both international and U.S law (a state must have a population of at least 60,000 under the Northwest Ordinance) and under Article II of the Outer Space Treaty the moon and all other celestrial bodies are terrae nullius and the common property of mankind.
Removed this, as it doesn't really fit the trope at all: