Question

Congress cannot make a law that violates the freedom of speech.

What constitutional principle is at work?
O popular sovereignty
federalism
limited government
separation of powers

Answer 1

Limited government.

Explanation: The First Amendment to the Constitution establishes the freedom of speech, which is part of this founding document meant to put a limit on the powers of government. This is drastically different than many laws in other countries at the time, which were designed to put a limit on the power of citizens.