The attorney —Steve Pigeon (?)— said that in 1981 Obama probably thought that he was a British citizen because of his father and then a Kenyan citizen because of Kenya’s independence, but also entitled to an Indonesian passport because of his adoption by Sotero. And that explains how Obama was abled to travel to Pakistan in the early 80s (on an Indonesian passport) and why Obama has sealed his college records (from Occidental, which most likely show that he was Barry Sotero and a foreign student).
And it also explains why he didn’t register with the Selective Service — and why that document was created (per Debbie Schlussel).
If you go to factcheck.org it states his father Obama Sr. was a Kenyan citizen and Obama also admits he was born under dual citizenship.
So the Obama Dunham divorce certificate does not bring anything new in the equation.