Backpedaling Biden: “Buck Up”

VP revises his "stop whining" statement on premier of MSNBC's "Last Word" Monday.

Watch it here.

More from his interview with Lawrence O'Donnell – including advice to Dems on how to respond to Palin, O'Donnell – here.

HALPERIN'S TAKE: Two known truths re-proven in this interview -- Lawrence O'Donnell is wicked smart, and there is no one in American politics more interesting than Joe Biden.  Make time to read the transcript or watch an excerpt here.