<P> With two brief interruptions since the Great Depression and World War II eras, the Democrats with unusually large majorities for over four decades, controlled the lower house of the United States Congress in the House of Representatives from 1930 until 1994 and the U.S. Senate for most of that same period, electing the Speaker of the House and the Representatives' majority leaders / committee chairs along with the upper house of the Senate's majority leaders and committee chairmen . Important Democratic progressive / liberal leaders included Presidents: 33rd--Harry S Truman of Missouri (1945--1953) and 36th--Lyndon B. Johnson of Texas (1963--1969), as well as the earlier Kennedy brothers of 35th President John F. Kennedy of Massachusetts (1961--1963), Senators Robert F. Kennedy of New York and Senator Edward M. ("Teddy") Kennedy of Massachusetts who carried the flag for modern American political liberalism . Since the presidential election of 1976, Democrats have won five out of the last ten presidential elections, winning in the presidential elections of 1976 (with 39th President Jimmy Carter of Georgia, 1977--1981), 1992 and 1996 (with 42nd President Bill Clinton of Arkansas, 1993--2001) and 2008 and 2012 (with 44th President Barack Obama of Illinois, 2009--2017). </P> <P> Social scientists Theodore Caplow et al. argue that "the Democratic party, nationally, moved from left - center toward the center in the 1940s and 1950s, then moved further toward the right - center in the 1970s and 1980s". </P> <P> The modern Democratic Party emerged in the 1830s from former factions of the Democratic - Republican Party, which had largely collapsed by 1824 . It was built by Martin Van Buren who assembled a cadre of politicians in every state behind war hero Andrew Jackson of Tennessee . </P> <P> The spirit of Jacksonian democracy animated the party from the early 1830s to the 1850s, shaping the Second Party System, with the Whig Party the main opposition . After the disappearance of the Federalists after 1815 and the Era of Good Feelings (1816--1824), there was a hiatus of weakly organized personal factions until about 1828--1832, when the modern Democratic Party emerged along with its rival the Whigs . The new Democratic Party became a coalition of farmers, city - dwelling laborers and Irish Catholics . </P>

Who formed the democratic party and when was it founded
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