There is more to this than meets the eye.
He has been on shaky ground ever since the state party convention, where Ron Paulists pulled off a takeover, and his response was weak. This cost him a lot of leadership support.
And he was not kidding about his health. He is planning to get serious surgery on both knees, so all else being equal, resigning may not be such a bad idea.
Referring to Obama’s LFBC, he couldn’t bring himself to call it a forgery.
Radio interview:
http://www.youtube.com/watch?v=oDMe78yQ-wo&feature=youtu.be