Why Didn't Trump Close The Border in June 2018?
I don't know what I was doing in 2018... or 2023... to have missed this...
https://en.wikipedia.org/wiki/Trump_v._Hawaii#:~:text=17%2D965%2C%20585%20U.S.%20___,refugees%20without%20valid%20travel%20documents.
Delivering the majority opinion, Chief Justice John Roberts concluded that the language of 8 U. S. C. §1182(f) of the Immigration and Nationality Act (1952) was clear in giving the President broad authority to suspend the entry of non-citizens into the country and that Trump's Presidential Proclamation 9645 did not exceed any textual limit on the President's authority.[51] Under 8 U. S. C. §1182(f), a President may limit alien entry when he finds that such entry "would be detrimental to the interests of the United States." Trump determined that alien entries from some countries would be detrimental because those countries do not share adequate information with the U.S. for an informed decision on entry, and that entries from other countries are detrimental because their citizens create national security risks. Trump showed that the limits he put in place were tailored to protect American interests. The only prerequisite set forth in §1182(f) is that the President "find" that the entry of the covered aliens would be detrimental to the interests of the U.S. The Supreme Court rule: "The President has undoubtedly fulfilled that requirement here." According to Roberts, Trump acted within his powers.