Andrew Johnson's speech on Washington's Birthday 1866. He compares himself to Christ and his Radical Republican political opponents in Congress to the recently defeated Confederates.
Jimmy Carter's "Crisis of Confidence" or "Malaise" speech. He lays out a laundry list of demoralizing American problems with no solutions and no real hope of success.
Barack Obama's stunning admission, after a summer full of golf and vacations that he has no strategy for ISIL revolutionaries.