 One such politician murdered by the Klan on the eve of the 1868 presidential election was Republican Congressman James M. Hinds of Arkansas.Widespread violence in the South led to federal intervention by President Ulysses S. Grant in 1871, which suppressed the Klan.Nevertheless, white Democrats, calling themselves "Redeemers", regained control of the South state by state, sometimes using fraud and violence to control state elections.