Not so fast.  It was Ken Burns of the acclaimed PBS "The Civil War" documentary fame who let at least two "wowsers" through to the final cut.  If I recall correctly, they specifically had to do with Abraham Lincoln's age at the time he was assassinated and the actual number of black men who volunteered and served in the Union Army.

If a smart fella like Ken Burns can slip, then why not a nonspecialist like President Trump?  Trump never claimed to  be an historian, much less a student, of American history did he?