Unite Here Local 25 is a local labor union affiliated with Unite Here principally representing hospitality (especially hotel) employees in the Washington, D.C. metropolitan area. The local donates nearly exclusively to Democratic Party candidates, has campaigned for higher regulations on businesses such as Airbnb, and has donated to other left-of-center organizations which support liberal expansionist stances on immigration and labor union approaches toward economic issues.
Unite Here Local 25 was founded in 1975 as the result of the merger of five hospitality sector unions in Greater Metropolitan Washington, D.C.  As of its 2018 Department of Labor filing, the union has 5,666 members. 
For 2018, the union reported collecting $5,871,537 in receipts, with $5,657,305 coming from member dues and agency fees. 
Aside from the traditional union activities related to workplace bargaining and member benefits, the local is also involved in electoral politics. According to data compiled by the National Institute for Money in State Politics, during the 2018 election cycle, the union’s political committees mad all of their over $36,000 in campaign contributions to Democrats. This includes $6,000 donated to the California State Senate campaign of Maria Elena Durazo (D-Los Angeles), the general vice president for immigration, civil rights, and diversity of Local 25’s parent union, Unite Here.  All other donations went to races in Maryland. 
The union is a vocal supporter of regulating Airbnb and other short-term rental sites by the District of Columbia government; in 2017 and 2018, the union spent $157,000 campaigning for the adoption of a law that will limit the ability of homeowners to engage in short-term rentals.   
The union has donated money to the Working Families Organization, a nonprofit associated with the left-wing political faction Working Families Party that takes a progressive stance on a host of issues ranging from climate change to labor policy.   It also frames itself in terms of being part of the “resistance” to the Trump administration. 
John Boardman is the executive secretary-treasurer. He has been involved with the local since at least 1978 and has been the union’s executive since 1996. 
Linda Martin has been president since 2009. Her work in the 1990’s in the D.C.-area service industry eventually led to her involvement with the union as a shop steward, business agent, and eventually president.