Sam Adams, the former mayor of Portland, became the city's first openly gay mayor in 2009. In 2004, 59.7 percent of Multnomah County voters cast ballots against Oregon Ballot Measure 36, which amended the Oregon Constitution to prohibit recognition of same-sex marriages. The measure passed with 56.6% of the statewide vote. Multnomah County is one of two counties where a majority voted against the initiative; the other is Benton County, which includes Corvallis, home of Oregon State University. On April 28, 2005, Portland became the only city in the nation to withdraw from a Joint Terrorism Task Force. As of February 19, 2015, the Portland city council approved permanently staffing the JTTF with two of its city's police officers.