President Donald Trump has greatly—and, in many cases, quite recklessly—expanded the executive branch's power over private businesses.
The Trump administration has invoked claims of "national security" to levy higher tariffs on everything from steel to musical instruments. It has used the same argument to seize equity shares in more than two dozen private companies, including a so-called "golden share" in U.S. Steel that grants the president the authority to veto future attempts to relocate headquarters or make changes to its production facilities.
