Judicial review is an important part of the U.S. system that makes sure no one in government has too much power. It allows judges to look at laws and see if they follow the Constitution.

1. Where It Comes From: The idea of judicial review started with a case called Marbury v. Madison in 1803. This means that if a law or action from the government goes against the Constitution, it’s not allowed.

2. Keeping Things Balanced: Judicial review helps make sure that the courts can check the powers of the legislative branch (the lawmakers) and the executive branch (the president and his team). Since 1789, the Supreme Court has looked at over 200 laws. About 180 of those laws were found to be unconstitutional.

3. Protecting Rights: Judicial review also helps protect people’s rights. It makes sure the government doesn’t overstep its bounds. This way, all parts of the government have to follow the rules set by the Constitution.

In summary, judicial review is really important. It helps stop misuse of power and keeps our democracy strong.