WI: Bernie Sanders Runs in the 2008 Democratic Prinaries?

So, I searched the Post 1900 threads and the only one I could find was https://www.alternatehistory.com/discussion/showthread.php?t=162356 (where someone said Sanders would be too old to run in 2016). So, what would have happened if Sanders had decided to run for the nomination in 2008? Would he have resonated at all with the electorate after the Bush years? Would he have pulled the candidates to the left? Or would it have just helped him run again later in 2016?
 
The market didn't crash until after the conventions. Sanders would probably just split votes with Kucinich and be cast in with Mike Gravel as some crazy old man.
 
He wouldn't be able to take his current base from Obama. Maybe he'd split John Edwards' supporters, but that wouldn't amount to anything in the long run.
 
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