It's not in his best interest nor the best interest of his Alinskesque agenda to produce it right now as long as he can use the Birthers & all of their mysterious foreign Birth Certificates of dubious provenance to make all of his opposition look stupid, unserious and not worthy of the American people's trust on other issues.
What other conservatives are saying is: yes, we don't know who this guy is or where he came from, but we need to pick our battles wisely now in order to prevent this President who, like it or not, is sitting in that Oval Office right now, from doing as much damage to our country as he would prefer.