I believe years ago Trump made an EO that said all federal departments must hire qualified Americans first. They can't hire non-Americans just because they are cheaper. So if the TVA violated a presidential directive, he can get sacked. > Trump said the authority was replacing many of its in-house technology workers with contractors who rely heavily on foreign workers under the H1-B visa program for highly skilled workers. Ah, now it makes sense. Technology workers are critical infrastructure so the US needs to minimize the chances of spies getting in there. The amount, and quality, of information now determines who wins the war. Thus "information warfare" is the determining factor in many cases. That's why the CCP has been focusing on training CCP military hackers.