Deputy Attorney General Rod Rosenstein says Mueller can investigate any crime he uncovers in Russia probe. There is likely to be a lot of financial & political crimes & obstruction of justice.

https://www.washingtonpost.com/powerpost/rosenstein-special-counsel-mueller-can-investigate-any-crimes-he-uncovers-in-russia-probe/2017/08/06/2209365a-7aae-11e7-83c7-5bd5460f0d7e_story.html?utm_term=.cea91c868657