Related Clues:
- Successor of Bush
- November 2008 Senate resignee
- 44th president
- President sworn in on Lincoln's Bible
- Only president born in Hawaii
- 'Yes we can' sloganeer
- Time's Person of the Year 2008
- Surname of Bo the Portuguese water dog's family
- 'Dreams From My Father' author
- McCain beater
- President born on August 4, whose name can be found backward in 17-, 31-, 47- and 63-Across
- 2004 Democratic keynoter
- Biden boss
- With 64-Across, source of inspiration for this puzzle's theme
- Michelle Robinson's married name