Wait, for the following is the best example of the principle of checks and balances is it. Congress passes a new law and immigration courts of the condition of a person who failed to pay income tax courts release of person charges violating a law that is considered unconstitutional or the president negotiate a treaty with Spain.

The best example of the principle of checks and balances is when Congress passes a new law and immigration courts release a person charged with violating a law that is considered unconstitutional. This example showcases the concept of checks and balances as the courts have the power to interpret the constitutionality of laws passed by Congress. If a law is deemed unconstitutional, the courts can prevent its enforcement, thereby checking the power of the legislative branch.