Bosse served on the Beverly Hills Traffic and Parking Commission from 1997 to 2002, and the Beverly Hills Planning Commission from 2007 to 2011. In 2013, Bosse was appointed vice mayor. In March 2014, she was sworn in as the city's mayor at the
Wallis Annenberg Center for the Performing Arts. Actor
Sidney Poitier administered the
oath of office. In 2014, Bosse supported a City Council resolution urging Brunei Sultan
Hassanal Bolkiah to divest from
the Beverly Hills Hotel after the government of Brunei adopted Islamic
sharia law. She stated she would not visit the hotel until the issue was resolved. In May 2014, Bosse led a delegation to China to promote trade between Beverly Hills and several Chinese cities, with a focus on industries making luxury goods. Her delegation's visit included stops in
Beijing,
Guangzhou, and
Wuhan. Bosse began her second term as the city's mayor in March 2017. She re-launched her "Walk With the Mayor" program and announced a partnership between the City of
Beverly Hills and author
Deepak Chopra. In August 2017, she introduced the Beverly Hills Open Later Days (BOLD) initiative, encouraging businesses on
Rodeo Drive and elsewhere to extend evening hours. In April 2022, Bosse was sworn in for a third term as the city's mayor. During this period, she launched the Real Time Watch Centre to monitor public areas and introduced a "BHPD Alert" system to provide residents with updates on police activity. In October 2022, following the
murder of Mahsa Amini and the subsequent
protests that erupted across
Iran, Bosse led the City Council in passing a resolution that called for sanctions against the Islamic Republic of Iran, including that country's removal from the
United Nations Commission on the Status of Women. In December 2022, she participated in the second annual Mayors' Summit Against Antisemitism in
Athens, Greece, where leaders from 53 different cities and 23 countries signed a joint declaration, pledging to combat
antisemitism through education, awareness, and interfaith cooperation. ==Philanthropy==