Should Edwards Support Hillary or Obama?

If Edwards is truly against PAC money and big business I can't see how he can't endorse Barack Obama. Hillary is in bed with Big Business and Corporate America so I see no way he can endorse the Clinton's without becoming a total sell out. I think it is important that he endorses Obama rather than not endorsing anyone because how many of his voters might feel they are somewhat ignored by the Dem's (white males) and perhaps not vote at all or perhaps or even vote for McCain as he has a broad appeal amongst independents. Hopefully Edwards steps up soon and backs Obama. Edwards and Obama are the only candidates for change and that are anti-establishment.