Well, he did once say that the Constitution is full of “negative liberties”.
It's only because we have little frame of reference to what that means that most Americans aren't utterly terrified by that statement.
Liberals, on the whole, have no God but the State. Social justice, wealth redistribution and environmentalism is the spirit, but the state is the body.
Liberals feel that anything that restricts the power of the state to carry out the dictates of liberalism is a sin. That's why they don't register any negative feelings when the law is flouted. They. Don't. Care. The law means nothing to them unless it serves the cause. If it restricts the cause, then it's a virtue to ignore it.
If you think liberals would bat an eyelash if Obama gave the order to round up all guns, throw AGW deniers in labor camps, and seize the wealth of everyone with more than a million dollars in assets, you're wrong. The law means nothing to them.
Only the crude, Neanderthal consequences they'd suffer from the right keep them in check. Words on paper? Not so much.
We need to wipe Congress and this administration clean next November, or forever hold our noses.