If Hillary Clinton drops out of the presidential race, what happens to some 20 million dollars in campaign debt?

At the end of March, Clinton's campaign owed 10 million dollars to creditors, and she's made loans to her campaign totaling more than 11 million.

As the debt mounts, Clinton could be helped by none other than Barack Obama, who might ask his vast contributor network to pay down her debt for the sake of party unity.

If Clinton wants to pay herself back for the millions she's poured into her campaign, donors willing to help must act quickly. She would have only until the Democratic convention in late August to raise money to cover her loan. After that, Clinton could only raise up to $250,000 toward paying it off. Another option is to transfer the debt to her senatorial re-election committee, and then she could legally raise money to pay down her presidential debt.

The Federal Election Commission could have the last word.