California Proposition 187 (also known as the Save Our State (SOS) initiative) was a 1994 ballot initiative to establish a state-run citizenship screening system and prohibit illegal immigrants from using non-emergency health care, public education, and other services in the State of California. Voters passed the proposed law at a referendum on November 8, 1994. The law was challenged in a legal suit the day after its passage, and found unconstitutional by a federal district court on November 11.[1] In 1999, Governor Gray Davis halted state appeals of this ruling.
Passage of Proposition 187 reflected state residents' concerns about illegal immigration into the United States. Opponents believed the law was motivated by bigotry against illegal immigrants of Hispanic or Asian origin; supporters maintained that their concerns were economic: that the state could not afford to provide social services for so many people who had entered the country illegally or overstayed their visas.[2][3] The California Legislative Analyst's Office later said that the cost of verification would be greater than any fiscal benefits of the ballot measure.[4] As the state's demographics have shifted to include more immigrants, the reversal of Proposition 187 has been cited as a reason for the decline of the Republican Party in California.[5]