I think Trump needs to push this because if he wins the nomination the Dems would have run with “Trump is a racist because he challenged Obama’s citizenship status”. Now Trump has shown he is a equal opportunity birther. Preemptive action. A little painful, but a necessary and wise move.
http://www.freerepublic.com/focus/f-news/3384916/posts?page=91#91
Not really. 0’s goons got to anyone that could have pursued it any further. See butterdezillion’s post.