President Donald Trump signs an order applying tariffs to steel and aluminum imports, High school students protest over gun violence, Democrats hold a forum on gun control, Trump meets with Prime Minister Stefan Lofven of Sweden and Prime Minister Benjamin Netanyahu of Israel the week of March 4, 2018 in Washington, D.C.
Sam Nunberg (L), former campaign advisor to President Donald Trump, arrives at federal courthouse to testify before a Grand Jury in Robert Mueller's Russia investigation, in Washington, D.C. on Friday. Photo by Kevin Dietsch/UPI
President Donald Trump holds up a signed proclamation after singing the order applying tariffs to steel and aluminum imports, as he is joined by steel and aluminum makers in the Roosevelt Room at the White House on Thursday. Trump is calling for a 25 percent tariff on steel and 10 percent on aluminum, carve-outs may be added for allies such as Canada and Mexico. Photo by Kevin Dietsch/UPI
From left to right, President Donald Trump speaks beside Secretary of Defense Jim Mattis and Commerce Secretary Wilbur Ross during a meeting with members of the Trump Cabinet, in the Cabinet Room of the White House on Thursday. Photo by Michael Reynolds/UPI
Trump (R) gestures behind a model of a rocket beside US Secretary of Veterans Affairs David Shulkin (L). The competing model rockets were courtesy of Space X, United Launch Alliance and NASA as one of them may carry astronauts to either to moon or Mars. Photo by Michael Reynolds/UPI
Outgoing Director of the National Economic Council Gary Cohn, back, puts a note in his pocket while listening to Trump, front, deliver remarks. Cohen announced plans to resign from Trump's administration on Tuesday. Photo by Michael Reynolds/UPI
Kevin Hassett, chairman of the Council of Economic Advisers, testifies during a Congressional Joint Economic Hearing on the Economic Report of the President, on Capitol Hill on Thursday. Photo by Kevin Dietsch/UPI