Another obstacle facing migrating blacks were the discriminatory housing laws that were put in place to counteract progressive legislation following World War II. The 1963 Rumford Fair Housing Act that outlawed discrimination in housing was effectively nullified by California Proposition 14 in 1964. This legislation, sponsored by the California Real Estate Association and conservative state institutions, affirmed the property owner's right to refuse to sell, rent or lease their property based solely on race. The federal government immediately cut funding to California housing and both the California and United States Supreme Court declared Prop 14 unconstitutional. It was officially repealed by California Proposition 7 in 1974, but while it was in practice it contributed to the segregation of black migrants and is cited as a direct cause of the Watts riots in 1965.