1) the DOJ (department of justice) is charged with upholding and enforcing the laws of the united states
(coincidentally the president is always supposed to kinda support these laws too)
2) When the DOJ finds criminal behavior (bad guys) it will investigate and prosecute if found guilty
(even if they are GOP politicians, with a GOP affliated AG and POTUS)
Trump does not appear to understand #1 or #2 (hence todays tantrum tweet toward Beauregard)
It would not surprise me if his voters had a similar lack of understanding.
the end is nigh....