Mr. Obama, Meet Mr. Obama’s FBI.

Former presidents have one big advantage over the rest of us. When they speak, people assume they’ve done the homework. So when Barack Obama broke his long, comfortable silence this month to defend Rep. Ilhan Omar, it landed. He called the Trump administration’s investigation into her “so appalling.” He said the full weight of the federal government was crashing down on a law-abiding congresswoman because she’d dared to criticize the president. He told Americans they should be outraged. Strong words, delivered with the cool authority of a man defending a principle. Then came Thursday. The New York Times reported that


