What was Donald Trumps big announcement today concerning Barack Obama?

Answer 1

There wasn't one. Mr. Trump is masterful at getting media attention, and his "big announcement" was an offer to donate five million dollars to the charity of the president's choice if the president would release his college records. He also repeated his allegations about the president's birth certification; he has made these same false accusations many times, and they have been thoroughly discredited repeatedly, but he continues to get media coverage every time he says these things. It should be noted that the president did release his long-form birth certificate, and he is under no obligation to release his college records: these records are confidential under federal law. It should also be noted that many former presidents have not released their college records (nor have other presidents been asked to do so, except for President Obama).

Answer 2

There was no big announcement from Donald Trump concerning Barack Obama today.