Rational basis review is the least demanding standard of review for judging the constitutionality of a law. Under this standard, a law will be considered constitutional if it is rationally related to a legitimate government interest. In contrast to more intensive standards of review, the challenger rather than the government has the burden of proof. However, the Supreme Court sometimes has applied an enhanced version of rational basis review to laws involving certain mildly suspect classifications, such as LGBTQ+ individuals and people with mental disabilities.