In an interesting set of bedfellows, I think you also might see the Dems align with the extreme right/tea party folks over one other big issue:

Wars & Military Spending

I believe they will find common ground on the spending on all these wars and the left plus the extreme right may combine to put the brakes on. This *if* (huge if) the tea party folks really are about deficit reduction and smaller government, not just "nuh-uh".

Another bi-partisan (and IMO very important) issue could be legislation trying to curtail corporate and union contributions to elections.
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The charm of fishing is that it is the pursuit of what is elusive but attainable, a perpetual series of occasions for hope. -John Buchan