Federal courts have interpreted the U.S. Constitution to place some limits on states' ability to restrict access to marriage. In "Loving v. Virginia", the United States Supreme Court overturned state marriage laws that barred interracial marriages on the basis that marriage is a "basic civil right..." and that "...the freedom to marry, or not marry, a person of another race resides with the individual and cannot be infringed by the State." The Supreme Court struck down a 1992 Colorado constitutional amendment that barred legislative and judicial remedies to protect homosexuals from discrimination solely on the basis of their sexual orientation in "Romer v. Evans".