Sorry but until Trump provides the information he had regarding Obama's birth like he claimed to have then maybe I'll vote for him.
You and I both know that was just a schtick to endear himself to a subset of conservatives before launching his Presidential run.
I am a "birther" and I saw Trump's commentary on the issue several years ago, as an attempt to line up support for a Presidential run. I never took him seriously, I realized what he was doing when he was doing it.
But this little tactic worked for him. It did garner him support, and he did force Obama to produce a photoshopped (for lack of a better term) document.