Until now. And I'm afraid that's the point the USA government wants to make with this barbaric measure. They will only leave Cuba alone if the American people demands it in exchange of enough votes or until the USA becomes a contested hegemon or until Cuba gives away everything they've fought for decades because, shit, it sure is terrible to keep holding on. To me, it doesn't matter if they can't resist anymore and give everything away, they are already a nation of giants, but I will always hope for the people of the USA to finally take over their electoral system and start taking decisions by themselves as in a true democracy.