Just as Romney's 47% number is not evidence of a massive breakdown of society, the 12% average decline in household incomes in the wake of the 2008 collapse may not actually be evidence of a widespread collapse in family incomes.
Biden's active appearances at black and Latino gatherings, his rough language and his policy expertise are a huge plus for Obama in a down and dirty campaign. Any talk about dumping Biden is just that: talk.
The Dems should be praying Cheney will show up and make a speech. It could be his "Pat Buchanan in '92" kind of speech, telling people exactly what he believes, and in the process handing the election to the opponent.