A confidential CIA analysis delivered to administration policymakers this week reaches a conclusion that cuts against the White House’s public posture on the war: Iran can survive the U.S. naval blockade for at least three to four months before experiencing severe economic hardship. Four people familiar with the document described its findings to the Washington Post. One U.S. official said the actual figure is likely far higher — that Tehran’s capacity to absorb prolonged pressure exceeds even the agency’s estimate.