In both the Bush and the Obama Administrations, the leading agency in charge of this policy seems to be the State Department whose philosophy is to try to improve the image of theUnitedStatesin Latin America in order to mitigate the effect of anti-Americanism inthe area.
This world of intellectual and sometimes violent resistance was dominated by various shades of left-wing thought, seasoned with anti-Americanism (the UnitedStates welcomed the 1964 coup that brought the generals in).
But anti-Semitism and anti-Americanism are not easy things to suppress when you despise theUnitedStates, Israel, and Jews in general as much as he and his Muslim Brotherhood party do.