The Biden administration’s legal justification for its attacks on Houthi militants in Yemen is “laughable,” Sen. Tim Kaine (D-Va.) said at a Senate Foreign Relations committee hearing Tuesday on United States actions in the Red Sea. Speaking to defense officials, Kaine said though “Houthi behavior is abhorrent,” he has “grave skepticism” about the administration’s interpretation of presidential military powers under Article 2 of the Constitution. “A narrow mission to defend U.S. shipping, both military and commercial — that is Article 2 self-defense,” Kaine said. “Article 2 self-defense means you can defend U.S. personnel, you can defend U.S. military assets, you...