The U.S. Muslim Brotherhood and its non-Muslim allies have sprung into action. They are demanding that President Obama make Israel end its offensive against Hamas which, in characteristic Islamist fashion, they are falsely depicting as a genocidal crusade. Obama blames Hamas, but the pressure from Islamists, the anti-Israel left and other countries like Britain and France, may be taking a toll. He signaled possible opposition to an Israeli ground operation, saying it’d be “preferable” to end the Hamas rocket threat without sending in troops. The Council on American-Islamic Relations (CAIR), a Muslim Brotherhood entity whose executive director was fundraising for...