He will throw back his robe and salute the gathering with that magnificent song from "the Producers"
"Heil Myself...Heil to Me..I'm the Kraut who Conquered Amerika's Constitution!
He will then say "Pardon Me! and it's all over!
One thing at inauguration is who swears in the POTUS? Chief Justice John Roberts.
If Leo’s case or Keyes case get traction in SCOTUS and they think Obama is ineligble then Roberts cannot swear him in.
Will it happen? Leo has made a very pursuasive case without even asking for the birth certificate.