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Related Clues:
- 'Dreams From My Father' author
- McCain beater
- 47th U.S. vice president
- President born on August 4, whose name can be found backward in 17-, 31-, 47- and 63-Across
- 2004 Democratic keynoter
- Biden boss
- Obama's running mate
- With 64-Across, source of inspiration for this puzzle's theme
- Michelle Robinson's married name
- Biden's boss
- President with a Grammy
- Forty-fourth president
- 2009 Peace Nobelist
- ''Promises to Keep ''memoirist
- ''The Audacity of Hope'' author