When a judge analyzes law, what document is used to determine the law's validity?

the Bill of Rights

the US Constitution

the Declaration of Independence

the Majority Opinion

When a judge analyzes law, the document which he used to determine the law's validity is called the United State constitution. The constitution is a set of fundamental principles and established precedents upon which the organisation of a nation is dependent.

The correct answer here is the second option.

A judge's job is to see the validity of a law and that means in simpler terms if the law aligns with the Constitution of the United States of America. The constitution is the supreme law document in the states and all laws that are made have to be in accordance with the Constitution. If the laws is unconstitutional it is struck down.