Three Cousins and One Lemonade Stand
Imagine three cousins who run a lemonade stand together. What if one cousin made every rule, ran the stand and also settled every argument? That cousin could do whatever he or she liked, even if it was unfair. It is safer to share the power.
So the cousins divide the work into three parts. One cousin writes the rules, such as the price and the hours. A second cousin carries out the rules by making the lemonade and taking the money. The third cousin settles disagreements, such as whether a rule was followed.
Our national government copies the same idea. Its plan, the Constitution, spreads power across three branches. One of them, Congress, makes the laws. The president and many workers carry out the laws. The courts decide what laws mean and settle disputes.
Each branch also has ways to check the others. This is called checks and balances. For example, the president can refuse to sign a bill that Congress passes, which is called a veto. But Congress can still pass the bill if enough members vote for it again. Courts can decide that a law does not fit the Constitution.
These checks make it hard for any one branch to take too much power. Our lemonade stand works better the same way.