Ch. 1. Redefining presidential leadership -- ch. 2. The depth and breadth of national leadership -- ch. 3. A national president : Bill Clinton -- ch. 4. A constrained president : George W. Bush -- ch. 5. An obstructed president : Barack Obama -- ch. 6. Changing tactics, improving outcomes? -- ch. 7. Alternate models of leadership -- ch. 8. Presidential leadership for the twenty-first century