How does each branch check each other to pass laws?

In the U.S. government, each branch checks the others through a system of checks and balances. The legislative branch (Congress) creates laws, but the executive branch (the President) can veto legislation. Meanwhile, the judicial branch (the courts) can review laws for constitutionality and strike them down if deemed unconstitutional. This interplay ensures that no single branch gains too much power and that laws reflect a balance of interests.