welcome back. i'm stephanie ruhle. it is time for your morning primer. everything you need to know to get your day started. we begin with an unusual meeting. all 100 senators are going to the white house today for a briefing on north korea. the meeting was originally scheduled on the capitol but was moved to the white house at president trump's suggestion. they will be briefed by the secretary of state and the secretary of defense among other white house officials. we are now seeing the first images of yesterday's military drill in north korea, which marked the 85th anniversary of the country's military. the images come as protests erupted in south korea over a u.s. anti-missile defense system being brought into the country. canadian prime minister justin trudeau called president trump on tuesday rejecting the lumber tariff, calling it unfair. the white house said the call was amicable and trump is not worried about a trade war. and a u.s. ship fired a