White House backs Argentina in Falklands banner row at World Cup
White House backs Argentina in Falklands banner row at World Cup
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White House backs Argentina in Falklands banner row at World Cup

Giuliani, that name sounds familiar...
Of course the players can say what they want, nobody is saying they can't. It just so happens that they are voluntary members of an organization that has a set of rules which is not related to the US constitution.
This is prime political shithousery