Sessions could dismiss Mueller cases not related to the campaign

Law & Crime:

Paul Manafort‘s legal team brought a motion to dismiss on Tuesday, noting that Rosenstein could not appoint Mueller to any investigation outside the scope of the 2016 campaign since Sessions did not recuse himself for anything outside the campaign. I agree with this take on Mueller’s authority. If we follow that argument that would mean Sessions himself has exclusive authority to appoint a special counsel for non-collusion charges, and Sessions has taken no such action. Sessions himself should make that clear to Mueller, rather than await court resolution. Doing so would remove three of the four areas of inquiry from Mueller’s requested interview with President Trump.

Sessions formally notifying Mueller that he does not have authority to act outside of campaign-related cases and cases related to obstruction of Mueller’s investigation would be doing what the Constitution compels: enforcing the Appointments Clause of the Constitution. Additionally, Sessions notifying Mueller that he does not have authority to act outside of campaign-related cases would be exercising Sessions’ court-recognized Constitutional obligation to “direct and supervise litigation” conducted by the Department of Justice. Furthermore, Sessions notifying Mueller that he does not have authority to act outside of campaign-related cases protects against the inappropriate use of the federal grand jury that defendant Manafort now rightly complains about.

Sessions limiting Mueller to the 2016 campaign would also be restoring confidence in democratic institutions, and restore public faith that democratically elected officials.

One thing to remember about Sessions’ recusal: Sessions only recused himself from “any existing or future investigations of any matters related in any way to the campaigns for President of the United States.” This recusal letter limits the scope of Sessions’ recusal to the 2016 campaigns; it does not authorize Sessions’ recusal for anything beyond that. Constitutionally, Sessions has a “duty to direct and supervise litigation” conducted by the Department of Justice. Ethically, professionally, and legally, Sessions cannot ignore his supervisory obligations for cases that are not related to the “campaigns for President.”
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There is much more.

This is an interesting point.  Manafort could get his case dismissed.  That would certainly be a blow to the Mueller prosecution since it looks like the charges are wholly unrelated to the campaign.  In fact, the charges look like an attempt to coerce testimony against others.   Manafort has already brought a case challenging Mueller's authority and this would seem to imply he has a strong point if he brought it in the proper forum.