WASHINGTON (AP) — Betraying no trust in an independent judiciary, President Donald Trump is using a federal appeals court in San Francisco as a punching bag for his frustrations about not getting his way on border security. He's spreading misinformation in the process and appearing to misunderstand how appeals work.

Trump drew an unusual rebuke from the Supreme Court's chief justice, John Roberts, earlier in the week after the president assailed the judge who rejected his migrant asylum policy as an "Obama judge." Roberts rejected the insinuation that judges are beholden to the presidents who...