Is NBC News going to research the great-great-grandparents, and their activities between 1850-1860, of all senators, or just Mitch McConnell? Is this the first in a series?

Is NBC News going to research the great-great-grandparents, and their activities between 1850-1860, of all senators, or just Mitch McConnell? Is this the first in a series? https://t.co/VBNondjWIp

— Byron York (@ByronYork) July 9, 2019