After World War I, the popularity of the Klan surged, and it became a political power in many regions of
the United States, particularly
in the South. It was also popular
in the border
states, the Mountain States, and the West. Its local political strength gave it a major role in the 1924 Democratic Party National Convention (DNC). However, its participation was unwelcome by many DNC delegates, such as Catholics from the major cities of the Northeast and Midwest.