John Edwards' incredible gamble

The campaign finance abuse trial of former presidential candidate John Edwards begins tomorrow. Erin Moriarty of "48 Hours" takes us behind the headlines:

A Presidential candidate's pregnant mistress, kept in high style in luxury hotels like the Four Seasons in Santa Barbara, and ferried across the country in private jets . . . and hundreds of thousands of dollars stashed in a secret bank account.

The details read like a racy Hollywood script, but they are in fact part of a federal criminal indictment.

The defendant: Johnny Reid Edwards, better known as John Edwards.

"I will regret for the rest of my life the pain and the hurt that I've caused to others, but I did not break the law, and I never, ever thought that I was breaking the law" he said.

But tomorrow, the former Democratic U.S. Senator goes on trial in North Carolina. He is accused of misusing campaign funds in his failed 2008 presidential bid and then lying about it - a stunning fall from grace.

"Edwards was arguably the best known and most successful trial lawyer in modern North Carolina history," said Hampton Dellinger, a practicing lawyer and a former Deputy Attorney General in North Carolina. "He came out of nowhere to run for the U.S. Senate and won; catapulted himself on the national stage as the vice presidential nominee."

Dellinger says no other national candidate has faced criminal charges like these, which could land Edwards in prison for 30 years.

"When I teach campaign and election law, I talk about the typical political corruption cases, where essentially an office holder or a candidate is selling something - an earmark, an ambassadorship, in the case of [Illinois] Governor Blagojevich, a U.S. Senate seat - in exchange for campaign or personal support," Dellinger said. "None of that is what has happened here."

Rielle Hunter and child, left, and John Edwards.
Will Ragozzino/Getty Images/AP

The prosecution's star witness is Andrew Young, Edwards' former aide. He is likely to say at trial what he wrote in his 2010 book, "The Politician," that two wealthy people - the late trial attorney Fred Baron and Virginia philanthropist Rachel Bunny Mellon - paid nearly a million dollars to hide Rielle Hunter, John Edwards' pregnant girlfriend, from both the press and from his wife, Elizabeth (who was dying of cancer).

Young said Bunny even hid the money in boxes of chocolate. But the key question is, was that money "campaign funds"?

"There's no question that the Bunny Mellon contributions are the most challenging ones for the Edwards defense team to deal with," said Dellinger. "But it wasn't directed to his campaign. These are not monies that went to his campaign coffers."

"It wasn't directed to his campaign - it didn't pay for ads, it didn't pay for polls," said Dellinger. "But it did keep his campaign viable."

The defense claims that the money instead went to Andrew Young, who has credibility problems: He originally claimed that HE was the father of Hunter's baby, and the government gave him full immunity to testify.