By comparing the US government's tax plans for private equity to the German invasion of Poland in 1939, it looks like Stephen Schwarzman has fallen foul of Godwin's Law, which states that any Internet argument will inevitably end with an analogy to the second world war.
The comments, reported by Newsweek http://bit.ly/cDo7WI, bring to mind the convention that anyone who uses a spurious analogy to the second world war immediately loses credibility and, by consequence, the argument.