Good article here that sets the record straight about her ‘built by slaves’ comment.... http://toprightnews.com/michelle-obama-complains-of-living-in-white-house-built-by-slaves-but-theres-one-huge-problem/
The US Government actually paid the slaves a normal days wages to work building the White House.
They did it intentionally because the Founding Fathers did not want the government based their ideals being built by slave labor.
At least some of the slaves used the money they earned from building the White House to buy their freedom.
Seems like validation of the American Dream to me.
Michelle Obama, You Did Not Build That.