MSNBC host apologies after mocking Romneys' black grandchild...

MSNBC host Melissa Harris-Perry offered an apology to the Romney family on Tuesday after a panel on her show mocked the fact that one of Mitt Romney's grandchildren is black.

On Sunday's "Melissa Harris-Perry" show, Harris-Perry led a panel in discussing the "Photos of the Year," which included a Romney family Christmas photo. In the photo, Romney is seen holding his adopted grandchild, Kieran, who is black.  More