Mr. Yiannopoulos, a prominent early supporter of President Trump, was detained at the New Orleans airport. The Trump administration publicized his arrest and shared a mug shot.
The Trump administration is preparing to revoke the visas of up to 200,000 foreigners who have applied for or are currently seeking asylum status in the United States.
The judge ruled that Secretary of State Marco Rubio exceeded his authority by issuing the policy, which "runs afoul" of the Immigration and Nationality Act by mandating "the refusal of visas to eligible applicants without any basis in law."