Related Clues:
- Surname of Bo the Portuguese water dog's family
- 'Dreams From My Father' author
- McCain beater
- Subject of the 1999 best seller 'Dutch'
- 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
- Biden's boss
- President with a Grammy
- President who attended Eureka College
- Forty-fourth president
- 2009 Peace Nobelist
- ''The Audacity of Hope'' author