Joan Mellen, professor and historian at Temple University, doubts it:
Neither he [Trump] nor anyone in his government seems qualified to make that determination. But if they found someone at Fox News to feed this information, they still would not do it. It is not, and has not been since 1963 in the interest of the government that participated in this murder to expose themselves as being caught in this act…. Wouldn’t it be better to release everything? It seems inconceivable that Donald Trump the person to be the champion of the truth, almost as difficult to crown with that accolade as the Kennedy family itself.