Joe Biden should explain where his "Lying dog faced pony soldier" line came from.

[bluewater]

44. It's an expression used in a lot of places actually

(A) Catch-phrase that possibly originated during the vaudeville and chitlin' circuit days. Spoken by several African-American actors in motion pictures of the 1920s to 1940s, usually when scared by a ghost or such (whereupon the character scooted). Delivered by actor Willie Best (1913–1962) in the 1940 Bob Hope film "The Ghost Breakers"; delivered by actor Stepin Fetchit (1902–1985) in several films; often attributed to actor Mantan Moreland (1902–1973)."

According to another website called The Straight Dope, which describes its mission as
"Fighting ignorance since 1973 (It's taking longer than we thought)":
(Feets don't fail me now) was one of the catch phrases of Stepin Fetchit, an early black film performer. He basically transitioned the old racist minstrel shows from stage to screen, portraying a humble, fearful Negro caricature for the delight of white audiences. He made a lot of money doing it, but it's still a rather hateful stereotype."

The author of the entry then adds:
"I find it interesting that the phrase has survived to the present, while somehow shedding its deeply racist origins, to the point that it can apparently be used in mainstream marketing (though I haven't seen that myself and would welcome a citation). In any event, if you choose to pick up this phrase for your own usage, be very careful about your audience, lest you inadvertently cause serious offense."

But here's the thing, I am not running for President and even then I don't walk around saying "feets don't fail me now".

Joe should drop the "lying dog-face pony soldier" quip, it's simply inappropriate especially since he attributes it to an "Indian Chief".