The Obamas are not totally stupid and uninformed, they just like to keep stabbing the knife of racism in a little deeper each time they speak! Yes, slaves helped build the White House, but so did many hired laborers. Shameful that the Obamas are such blatant race-baiters! They don't even practice any subtlety.
There are many African Americans that are educated and in the public eye that knows that President Lincoln was a Republican just like Martin Luther King and may other African Americas. The Democrats like old Senator Bird, Al Gore's father and many more Democrats were big in the KKK. They voted against integration and it has been the Republicans who have helped the African Americans. Please check it out.