One Place The WH Would Have Liked More Diversity

Mentioned at the bottom of the WP's Fitz Watch:

The grand jury, a group of onetime strangers from across the District, has spent two days a week for nearly 24 months in the cloistered, guarded room on the third floor of the U.S. District Courthouse.  ...Like the jury's forewoman, the majority are African American women who appear to be middle-age or older.

What's the president's approval rating among African-Americans again?