Senate Leader Joe Biden (President of  The U.S. Senate)
Robert Byrd (Senate president pro tempore)
Harry Reid (majority leader) 
House Leader Nancy Pelosi (speaker)
Steny Hoyer (majority leader) 

Democratic Headquarters 
430 South Capitol Street SE
Washington, D.C.
20003 

The Democratic Party traces its origins to the Democratic-Republican Party, founded by Thomas Jefferson, James Madison, and other influential opponents of the Federalists in 1792. However, the modern Democratic party truly arose in the 1830s, with the election of Andrew Jackson. Since the division of the Republican Party in the election of 1912, it has gradually positioned itself to the left of the Republican Party on economic and social issues. Until the period following the passage of the Civil Rights Act of 1964, the Democratic Party was primarily a coalition of two parties divided by region. Southern Democrats were typically given high conservative ratings by the American Conservative Union while northern Democrats were typically given very low ratings. Southern Democrats were a core bloc of the bi-partisan conservative coalition that lasted through the Reagan-era. The economically activist philosophy of Franklin D. Roosevelt, which has strongly influenced American liberalism, has shaped much of the party's economic agenda since 1932, and served to tie the two regional factions of the party together until the late 1960s. In fact, Roosevelt's New Deal coalition usually controlled the national government until the 1970s.