Note that the increase among African-American support occurred AFTER the Baltimore comments.
They were ignored until our great president showed the deplorable conditions under which they lived (under Dem administrations); he represented them well.
These figures really hurt the chances of Warren, Sanders, and other white libs; there are simply not enough angry white women with p%&#@ hats to get them across the finish line in a national election - and non-whites have a healthy distrust of them.