The goal must be to get her fired for abuse of power. Getting the press involved is the only way to accomplish this. Calling a Congressman by itself will only help if done in a huge and coordinated way. That kind of suggestion on its own is a safety valve, the sort of futile thing that people who don't want see justice served would suggest. As for the justification of putting prosecutors beyond elections because of "the South": Reconstruction and Jim Crow have somehow become the excuse for birthing a class of invulnerable prosecutors that threaten a young Jewish kid in Boston with 35 years in jail for downloading some history PDFs! We really licked Jim Crow now, good job! I am sure that burning the democracy to save it makes some sense in some universe, but not this one.
No matter. The fact that this woman cannot be disciplined by electoral measures is what necessitates the use of the Internet and the press: