Proposition 8: California Supreme Court to Rule Tuesday May 22, 2009 by Andy Towle The California Supreme Court has posted notice of an opinion filing on Proposition 8 for Tuesday, May 26 (PDF). The Court will announce its ruling in three cases challenging Proposition 8: STRAUSS et al. v. HORTON; TYLER et al. v. STATE OF CALIFORNIA; and CITY AND COUNTY OF SAN FRANCISCO et al. v. HORTON. Demonstration info: Day of Decision – cities.New York: Rally starting at Sheridan Square.May 30: Meet in the Middle for Equality.