Funny you would paraphrase Groucho for that joke. He was in trouble with the FBI and Secret Service for disparaging Nixon and they took it as an actual death threat. In a 1971 interview, Groucho Marx told Flash magazine, "I think the only hope this country has is Nixon's assassination. ..
Madonna and that Kathie Griffith would be in prison garb by now by that reasoning.
Interesting. I thought I heard Groucho was a Republican.