What is judicial review and does it fit within the framework of checks and balances?

The power of judicial review was established by common law and later approved by the U.S. Supreme Court in the landmark case of Marbury v. Madison. Judicial review is the power of the court to review executive actions and legislative actions to determine their constitutionality. Judicial review fits into the framework of checks and balances because each branch's powers help to keep the other branches from dominating the government. Congress has the power to enact legislation but the president can veto a law that Congress passes and Congress can then try to overturn that veto by two-thirds vote by members of Congress. The judiciary has the power to strike down as unconstitutional, any legislation from Congress that the president signs.