The birth certificate is easily destroyed, modified, you will never get an definitive answer going after paper.
But here is an easy way to verify his story. It involves ... well I’d rather not say.
Where can one find Trump’s investigative team?
Trump is requesting any information regarding Obama and others to be sent to:
Mr. Michael D. Cohen, Executive Vice President and Special Counsel
The Trump Organization
725 Fifth Avenue
New York, NY 10022