Conservative Coalition

The conservative coalition was an unofficial Congressional coalition bringing together a conservative majority of the Republican Party and the conservative, mostly Southern, wing of the Democratic Party. According to James T. Patterson:

By and large the congressional conservatives by 1939 agreed in opposing the spread of federal power and bureaucracy, in denouncing deficit spending, in criticizing industrial labor unions, and in excoriating most welfare programs. They sought to "conserve" an America which they believed to have existed before 1933.

The coalition was dominant in Congress from 1937 to 1963 and remained a political force until the mid-1980s, eventually dying out in the 1990s when few conservative Democrats remained in Congress. In terms of Congressional roll call votes, it primarily appeared on votes affecting labor unions. The conservative coalition did not operate on civil rights bills, for the two wings had opposing viewpoints. However, the coalition did have the power to prevent unwanted bills from even coming to a vote. The coalition included many committee chairmen from the South who blocked bills by not reporting them from their committees. Furthermore, Howard W. Smith, chairman of the House Rules Committee, often could kill a bill simply by not reporting it out with a favorable rule; he lost some of that power in 1961. The conservative coalition was not concerned with foreign policy, as most of the southern Democrats were internationalists, a position opposed by most Republicans.

In 1936, President Franklin D. Roosevelt had won a second term in a landslide, sweeping all but two states over his Republican opponent, Alf Landon. For the 1937 session of Congress, the Republicans would have only 17 Senators (out of a total of 96) and 89 congressmen (out of a total of 431). Given his party's overwhelming majorities, FDR decided he could overcome opposition to his liberal New Deal policies by the conservative justices of the Supreme Court, which had struck down many New Deal agencies as unconstitutional. Roosevelt proposed to expand the size of the court from nine to fifteen justices; if the proposal met with success, he would be able to "pack" the court with six new justices who would support his policies.

...
Wikipedia