Crime and convictions went down for black men although it's by default disproportionate because of the entire criminal justice system.
Anybody that sums her record up as "locking up black men disproportionately" is lying to you and lazy.

Her record has some serious positives for criminal justice reform and the way law enforcement interacts with citizens.
Most of the programs she implemented are the first of their kind.
The only stain I see is the whole situation with the exculpatory evidence debacle.
Although she implemented rules that require prosecutors to allow exculpatory evidence into cases. She didn't make the right decision on that one case in particular.
Yet she is one of the most progressive voices in congress.