In November 1993, the Freedom From Religion Foundation Denver chapter, with the national organization, successfully went to court to enjoin the Denver mayor's office from cosponsoring a National Day of Prayer against Violation on Dec. 5, 1993. The Court enjoined the mayor from "any further endorsement, promotion, sponsorship or support of the Day of Prayer."
Ruling (pdf) by Judge John N. McMullen, District Court, in FFRF, Colorado Chapter of FFRF, Robert H. Fenn and Lee Whitfield v. City and County of Denver, Colo., Wellington Web,b, Mayor of Denver. Case No. 93 CV 6056