If she wanted to shrink jails when she was California's Attorney General, she could have respected court orders requiring prisoners to be released.
Likewise, she could have stopped "defending convictions obtained by local prosecutors who inserted a false confession into the transcript of a police interrogation, lied under oath and withheld crucial evidence from the defense."
https://www.nytimes.com/2016/05/29/magazine/kamala-harris-a-...