Herbert Hoover

Airs Tuesday, November 29, 2011 at 10:00 p.m. ET/PT. Check your local listings.

Don learns why Herbert Hoover dike was built on Lake Okeechobee.

Herbert Hoover was a politician and a humanitarian whose legacy has been largely defined by the Great Depression.

Here s Barack Obama singing the intro to Al Green s Let s Stay Together at a fundraiser at the Apollo Theater in Harlem, to raucous applause. This doesn t seem entirely fair, cause the time I ran onstage at The Apollo and started singing Al Green into the mic it merely confused the audience, but I guess that s why they say the Apollo crowds are notoriously tough. Looks like we ve figured out the President s karaoke go-to. I kind of always had him pegged as a Santeria guy? Well done. Probably the most noteworthy Presidential singing performance since Herbert Hoover s rousing rendition of I Faw Down And Go Boom in 1928, which instantly earned him 90% of the Olde Timey Party vote (Historical fact). (vid via HuffPo)

Former president Hoover, 22 years after leaving office.

Actor Carroll O'Connor appears in this 1980 political ad endorsing Ted Kennedy in his bid for president in 1980 against fellow Democrat Jimmy Carter. O'Connor calls Carter "the most Republican president since Herbert Hoover."