Trump has been in the news this past week, his company lost the maintenance contract at Trump Tower due to incompetence.
Yes, extortion is where you threaten - Trump's threat is the constant "Birther" drumbeat nonsense. BTW Stephen Colbert offered Trump $1million from the Colbert SuperPAC to a Trump charity if he, Stephen, could tea bag Donald. I think Donald is terrible for refusing that - think of the kids! How selfish!
Here's Obama's great talk at the 2011 Correspondence Dinner where he eviscerated Donald Trump in person (while the Seals were killing bin Laden), plus the official release of the Obama birth video:
http://www.youtube.com/watch?v=n9mzJhvC-8E
Here's the 2012 dinner
http://www.youtube.com/watch?v=ZlJG5mpsyvI