President Trump asserts in a tweet Friday that he has the "legal right" to involve himself in US Justice Dept. criminal cases, if he wants to do so.

President Trump asserts in a tweet Friday that he has the "legal right" to involve himself in US Justice Dept. criminal cases, if he wants to do so. https://t.co/gofMcmy8e5

— NBC News (@NBCNews) February 14, 2020