Congress gave that power to the president. Congress can take the power back if it wishes but it won't, not even with their showboating faux hatred for Trump. Co

Congress gave that power to the president. Congress can take the power back if it wishes but it won't, not even with their showboating faux hatred for Trump. Congress hates making decisions like this one so they punt to the Executive Branch. This is not a unique situation. Over the years Congress has given away lots of its power to the president, which remains even when there is a change in office. Congress can change this any time it wants.