Wolfson: "If they [Obama campign] fail to win in PA, they will have failed."

[Downwinder]

Obama just has to get the margin down.

And in March, he raised $40 to Clinton's $20.

Right, but generally, a significant portion (something like 30-40%) of the money Clinton raises has been for the general election. Obama rarely raises very much general election money.

I'm not sure about that; I don't think you can donate to a fall campaign at this point (though you can to a party.

If I am not mistaken, an individual is limited to $2300 in contributions in both the primary, and the general election, for a limit of $4600.  Once an individual has contributed over $2300 in the primary season, any further contribution must be held for the general election.

Sen. Clinton's base of donor support has not grown like Obama's, and many of her donors have already maxed out for the primary.