NBC News Briefly: Trump's Mexico tariffs, Barr on Russia, Cardi B in court


President Trump announced on Twitter that the US would put a 5% tariff on all goods imported from Mexico starting June 10. Attorney General Barr took a few questions on Bob Mueller’s presser, and why the DOJ did not determine President Trump obstructed justice. Ellen’s Mom makes first comments since Ellen revealed she was sexually abused as a child.