Rational basis review is a standard of judicial scrutiny applied by courts to evaluate the constitutionality of a law or government action that does not involve a fundamental right or a suspect classification. This level of review requires the government to show that the law is rationally related to a legitimate governmental interest, meaning that it is generally accepted that a reasonable person could see a connection between the law and its intended purpose. This form of review is the most lenient and serves as the baseline against which other, more stringent forms of scrutiny are assessed.