The problem is that juries are approved by both prosecutor and defense attorney. The likelihood of a jury being unanimous in nullifying Mueller's charges is unlikely. I say this because instances of 'jury nullification' usually occur when a great number of the available jurors are against a given law, e.g., prohibition. The nation is divided on so many levels. I've never witnessed such blind hatred toward a President, Christians and conservatives. Too many in any potential jury pool have drank the kool-aid.
Hillary Clinton got 90% of the vote in Washington D.C. Donald Trump got 4%. A District of Columbia jury pool is likely to reflect those percentages.