Both are discussing the WSJ Editorial defending the now infamous Perkins Kristallnacht letter. Krugman notes that the WSJ equates "criticism with persecution" -- to suggest that maybe the Kochs have somewhat too much influence is engaging in "Hitler-y" behavior, as Chait writes.
Then Prof. Krugman writes a line that surpasses even "Godwin Help Us:"
May I say that if being criticized is a form of unjust persecution, every day of my life is a pogrom?May I say that the Prof is not just a brilliant economist, but a superb, hilarious, self-aware wordsmith as well?
Krugman finishes by quoting Lincoln's Cooper Union Speech, which is just as incredibly powerful and incredibly fitting for today's question -- "What should liberals do to accommodate or compromise with the right?" as it was for slavery:
These natural, and apparently adequate means all failing, what will convince them? This, and this only: cease to call slavery wrong, and join them in calling it right. And this must be done thoroughly – done in acts as well as in words. Silence will not be tolerated – we must place ourselves avowedly with them … The whole atmosphere must be disinfected from all taint of opposition to slavery, before they will cease to believe that all their troubles proceed from us.Just substitute for "slavery" "inequality" or "tax cuts for the wealthy" or "deregulation" and Abe's words ring brilliantly true today.