So the results did NOT rule our the possibility that Warren G. Harding had black blood.
"... Julie Granka, a population geneticist at AncestryDNA. As a result, she said, it is very unlikely, meaning less than a 5 percent chance, that Harding had a black ancestor within four generations, meaning great-great-grandparents.
However, she added, the analysis does not rule out the possibility that Harding still could have a more distant ancestor from sub-Saharan Africa.
52 posted on 09/13/2015 2:53:35 PM PDT by Yosemitest
(It's SIMPLE ! ... Fight, ... or Die !)