I'm pretty sure that Sean Spicer knows the Nazis were actually quite fond of using chemicals to kill people. He may be incompetent, but he's not dumb. Spicer seems to have fundamental problems using the language, though. And considering the job he holds requires an individual who has excellent communication skills, he doesn't seem like the optimal choice for the position. Not my place to make personnel decisions for the White House, but they might want to consider an upgrade. And that's all I have to say about that.