From this link we can see he has to have a document called a Consular Report of Birth Abroad.
http://market-ticker.org/akcs-www?post=231093
It needs to be solved, because the Demorats will use whatever they can to stop him.
Wrong, the CRBA is not equivalent to a birth certificate. You are not required to have on.
Please research what documents are required to obtain a CRBA, you will find it is those documents that prove he is a US Citizen