The ambassador’s name is Raymond Joseph, and he seized the initiative at the start of an interview with Rachel Maddow to deliver this rebuke to Pat Robertson:
I would like to address one thing that I heard tonight, about how the pact with the Devil made it possible for Haiti to suffer the way it has. I would like the whole world to know — America especially — that the independence of Haiti when the slaves rose up against the French and defeated the French army … the U.S. was able to gain the Louisiana Territory for $15 million. That’s three cents an acre. That’s 13 states west of the Mississippi that the Haitian slaves’ revolt in Haiti provided America. Also, the revolt of the rebels in Haiti allowed Latin America to be free. It’s from Haiti that Simon Bolivar left with men, boats, to go deliver Grand Colombia and the rest of South America. So, what pact the Haitians made with the Devil, has helped the United States become what it is.
I’m not sure what Ambassador Joseph meant by “Grand” Colombia, but I listened to it several times, and that’s what he said. The article at HuffPost has the complete video, including Rachel’s response. You will also find there the complete video of the CBN news report in which Pat Robertson made his demented remarks.