Clinton probably had dirt on him too.
Via Newsmax:
If you listened to the media chatter about why Joe Biden decided to take himself out of the running for president, you’d conclude that it was all about grieving and timing. By the time the Biden family went through the grieving process over the death of Beau Biden, it was just to late for Joe to get into the race.
All of that is true enough as far as it goes. But it doesn’t go far enough, because none of the media’s coverage told the story behind the story—the intrigue and deliberate deception at the highest levels of the political system that ultimately determined Biden’s decision to take a pass on the presidency.

