[citation needed]; I'm aware of all the Latin America badness, School of the Americas, Nicaragua, Allende, etc, but I don't know what you're referring to here and you do actually need to support claims of ballot rigging with evidence.
But yes, this fundamental tension in American "state building" was being unable to handle cases when the foreign public wanted a democracy that wasn't run by and for the benefit of US corporations or right-wing Christians. You can see it propagating backwards now America has its own Pinochet.