The Democratic Study Group (DSG) was a caucus consisting of liberal members of the Democratic Party in the United States House of Representatives, which also operated as a legislative service organization (LSO). It was founded in 1959 and was active until 1994. [1] It was founded "as a liberal counterpoint to the influence of senior conservatives and southern Democrats," and played a crucial role in passing liberal legislation in spite of the opposition of the conservative coalition during the late 1950s and 1960s. [2] After the 1970s, its role focused on legislative service, whose "principal activity [was] to disseminate detailed written materials to members of the House about upcoming legislation and policy issues, which it [did] on a daily basis when the chamber [was] in session." [2] [3]