Executive Order 9102, March 18, 1942, and Executive Order 9066 February 19,1942 calling for the internment, AKA prison camps, of U.S. born Americans were so ordered and so done by POTUS Franklin Delano Roosevelt, a DEMOCRAT.
"Executive Orders do not require Congressional approval to take effect but they have the same legal weight as laws passed by Congress. The President's source of authority to issue Executive Orders can be found in the Article II, Section 1 of the Constitution which grants to the President the "executive Power." Section 3 of Article II further directs the President to "take Care that the Laws be faithfully executed." To implement or execute the laws of the land, Presidents give direction and guidance to Executive Branch agencies and departments, often in the form of Executive Orders."This Nation.com