How does the Constitution stop individual states from getting too much power?

The Constitution limits the power of individual states by establishing a system of checks and balances between the federal government and the states. The Constitution grants certain powers to the federal government, such as the power to regulate interstate commerce, and reserves other powers to the states. The federal government also has the power to override state laws if they are found to be unconstitutional. Additionally, the Constitution grants the Supreme Court the power to review state laws and determine their constitutionality.