President Donald Trump has shown that with the appropriate political will, presidents can secure the border without help from Congress. Lower courts, partnered with open-borders activists, have sought to undermine this power, but the Supreme Court dealt two blows to this activism on Thursday.

The court held that Temporary Protected Status is indeed “temporary,” and that an alien is not in the United States till they are “in” the United States. These simple declarations, that words mean what they say and that statutory limits must be enforced as written, will make it easier for future presidents to preserve the border security Trump has achieved.