Let’s run over some of his arguments:

THE GRANDMOTHER STORY “His grandmother in Kenya stated, on tape, that he was born in Kenya and she was there to watch the birth,” Trump wrote. This goes back to a trans-Atlantic telephone call that was made in 2008 by Ron McRae, an Anabaptist bishop and birther, to Sarah Obama, the president’s 86-year-old stepgrandmother. He asked her, through an interpreter, whether she was “present when he was born in Kenya.” The translator responded: “She says, yes, she was. She was present when Obama was born.”

It is at this point that some of the tapes floating around the Web stop, which means that the listener doesn’t get to hear the follow-up, which makes it very clear that Sarah Obama misunderstood. The full conversation ends with the interpreter saying, for the umpteenth time: “Hawaii. She says he was born in Hawaii. In the state of Hawaii, where his father, his father was learning there. The state of Hawaii.”

THE BIRTH CERTIFICATE If only Hawaii made its birth records public, and charged people a thousand dollars a pop to look at them, the state’s budget problems would be solved by the conspiracy theorists. However, it doesn’t. If you were born in Hawaii and request a copy of your birth certificate, you get a certification of live birth, which the federal government accepts for passports. Barack Obama requested his in 2007, and his campaign posted it on the Internet.

“A certificate of live birth is not even signed by anybody. I saw his. I read it very carefully. It doesn’t have a serial number. It doesn’t have a signature,” said Trump on “Today.”

The document has the stamped signature of the state registrar. The University of Pennsylvania’s FactCheck.org made a pilgrimage to the Obama campaign headquarters, examined the document, felt the seal, checked the serial number and reported that it looked fine.

THE EMPTY PHOTO ALBUM “Our current president came out of nowhere. Came out of nowhere,” Trump told the Conservative Political Action Conference to great applause. “In fact, I’ll go a step further. The people that went to school with him, they never saw him; they don’t know who he is. It’s crazy.”