Discuss the perceived incompetence of a specific person and their actions related to law enforcement investigations. Also, express skepticism on the person's ability to be trusted in the future.
What future?  And who would be stupid enough to trust him?  He let partisan politics invade at least two serious law enforcement investigations and bungled them both.  He got pushed around by Lowretta , leaked information, and his actions had some minor effect on the 2016 election.  No matter how this turns out, both parties will continue throwing him under every bus that passes by.