There are roughly 270K Chinese students in the US, the second largest sending country. Moreover, over half of postdocs working at universities, doing research, are foreigners here on temporary non-immigrant visas. The reason for so many is two-fold. First, the CCP runs a massive overt and covert tech transfer program against the US. Second, foreign students are eager to participate in jobs programs such as Curricular Practical Training (CPT) while in school and Optional Practical Training (OPT) after they graduate. For those that qualify for STEM OPT, they get a 3-year employment authorization document that permits them to work anywhere in the US. If @realDonaldTrump wanted to flip the trade tables on China, he would direct @DHSgov to terminate the STEM OPT program as well as greatly curtail CPT. He has the authority to do both with no need for legislation,