Arguments to the contrary ignore the Constitution and misstate federal law.
On Friday, President Donald Trump issued an executive order calling for heightened vetting of certain foreign nationals seeking entry into the United States. The order temporarily suspends entry by the nationals of seven Muslim-majority countries: Syria, Iraq, Iran, Sudan, Libya, Somalia, and Yemen. It is to last for 90 days, while heightened vetting procedures are developed.
The order has predictably prompted intense protest from critics of immigration restrictions (most of whom are also critics of Trump). At the New York Times, the Cato Institute’s David J. Bier claims the temporary suspension is illegal because, in his view, it flouts the Immigration and Nationality Act of 1965. This contention is meritless, both constitutionally and as a matter of statutory law.
Let’s start with the Constitution, which vests all executive power in the president. Under the Constitution, as Thomas Jefferson wrote shortly after its adoption, “the transaction of business with foreign nations is Executive altogether. It belongs then to the head of that department, except as to such portions of it as are specifically submitted to the Senate. Exceptions are to be construed strictly.”
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