Michelle Obama's mom moved to D.C. because she was worried about her grandkids

In an excerpt from her conversation with "CBS This Morning" co-host Gayle King, the mother of former first lady Michelle Obama, Marian Shields Robinson, discusses what motivated her to move to Washington, D.C. Watch their wide-ranging interview Wednesday, Nov. 14, 2018, on “CBS This Morning,” which airs 7 a.m. to 9 a.m. ET/PT.