"As a U.S. bombing campaign in northern Iraq enters its fifth day, Baghdad is in a state of political crisis. Eight years ago, Nouri al-Maliki rose to prime minister with the help of the United States. Now the United States has helped pick his replacement. But al-Maliki is refusing to go — deploying his forces around Baghdad and accusing critics of staging a coup. The political crisis is worsening as U.S. airstrikes continue on Islamic State militants in the north. President Obama authorized the strikes last week in what he called an effort to halt the militants’ advance on Erbil, where the U.S. has a consulate and military personnel, as well as to prevent a massacre of the Yazidi minority. U.S. officials have confirmed the CIA is also secretly sending arms and ammunition directly to Kurdish forces known as the Peshmerga. We are joined by Spencer Ackerman, national security editor at The Guardian...."