It is not any law. It is not any political belief. It is not the action of any politician.
The number one enemy of freedom in the US is the sheer inactivity of the citizenship.
Most people in my country do not tend to go out into their communities and gain real-world experience that will create more educated political beliefs. They get most of their information from either CNN or Fox News, and choose who to vote for (if they even vote at all!) based solely on the information (or misinformation) they get from the mass media.
And then when a new bill gets added to the polls, the results are the same. People vote when the wording sounds good or bad to their ears when it comes from their news outlet of choice.
I don't know what is worse - people not voting at all, or people voting for their candidate or bill of choice without having a decent grasp of the implications of that vote.
Most people in my country do not want to go out and get real-world experiences. They would rather work their jobs (which too many of them tend to hate), go home and get all of their misinformation handed to them on a silver platter. There is too little motivation in the American citizenship these days. Most people know that there is a lot in the political system these days that is very wrong, but not enough people are doing anything about it. I think a lot of that has to do with a general sense of hopelessness ("things are too far damaged for us to do anything about it, it's completely out of our hands," etc).
People in the States still do have the potential to take the power back if they really wanted to. All that is missing is the motivation and the hope. Without the motivation and the hope, though, not much can be done, sad to say.
And I will end this post here. I hope I offended nobody with my political views.