If a law contradicts the Constitution, should a judge follow the law or the Constitution?
If it helps, you may assume the law explicitly states that the judge should definitely follow the law, and ignore the Constitution. Let's take the previous example of a new law by Congress:
Henceforth Congress can abridge the freedom of speech, or of the press; or the right of the people peaceably to assemble, and this law must be obeyed by judges regardless of what the First Amendment says
Ok, should a judge follow that or the First Amendment?