For one example, go back to 1995 during the welfare-reform debate. Rep. John Lewis, D-Ga., who is now embroiled in a controversy as to whether a Tea Party protester hurled a racial epithet at him, employed the use of his own Nazi invective. (h/t MRC Director of Media Analysis Tim Graham)
"Read the Republican contract," Lewis said on the House floor on March 21, 1995. "They're coming for our children. They're coming for the poor. They're coming for the sick, the elderly and the disabled." Lewis's comment paraphrased a famous passage by Rev. Martin Niemöller, who was in the resistance against the Nazis.