If you take that point of view, Roberts misspoke because the Supreme Court failed in its duty to require Obama to produce a birth certificate. And Obama misspoke because he was ineligible for the office.
Works for me.
I’m no believer in karma, but I found it incredibly telling that the oath was stumbled over, regardless of which side caused it (or interesting that both did in turn, in light of your fascinating post).
Rather than karma, may we call it “divine irony.”