See Cory Run:
The country’s racial history is an ever-present issue for Booker, one
of only three African American senators, but he wants to see his
complicated heritage as a source of communion rather than anger. Some of
his ancestors were slaves but several were slave owners—and one was a
Confederate soldier. A DNA test revealed that he’s 47 percent African,
45 percent European, and 7 percent Native American (which is about 70
times more Native American than Elizabeth Warren).