He also pointed out that the Communist Party of the USA has endorsed Hillary Clinton. Quite frankly, CPUSA is more worrisome to me than the KKK, especially since the KKK, one of America's first domestic terrorism orgs, was founded by a Democrat delegate and formed Confederate States of America general.
Socialist Workers Party endorsed obozo I believe.
The Klan was founded in 1866 Pulaski Tennessee, by James R. Crowe, Richard R. Reed, Calvin C. Jones, John C. Lester, Frank O. McCord John B. Kennedy
None of these gentleman to my knowledge served in the Confederate government or were Generals, in the army they were just former veterans the only General in the Klan was Nathan Forrest but he was not a founding member if you have any sources, or cautions by all means share also let’s you should also take note that the radical Republicans along with occupying Union forces did their fair share of terrorizing the South
Hillary was in the Senate with former KKK member Democrate Robert C Byrd. I found this photo of the two of them together: link
In the text of the linked article, Hillary said that Byrd was her mentor.