Which Prez candidate should a single-issue, federal-sentencing-reform voter support?

I ask this question with a serious interest in encouraging a serious (and respectful) discussion of whether folks think either of the two fellows seeking to be the US President over the next four years is likely to get behind and seek to move forward with federal sentencing reforms. 

If time permits late tonight, I will update this post to explain why I truly am not sure if there is an obvious answer to which candidate is more likely over the next four years to be interested and able to engender serious federal sentencing reform.  In the meantime, let me hear readers thoughts only hours before the final day for voting begins.