Tuesday will be the unveiling of what can be breathlessly awaited only in campaign season: a book on the Clinton Foundation, and allegations of a torrent of sleazy foreign cash that has poured into its coffers. I'm already on record as saying that the author, Peter Schweizer, might struggle to meet the burden of proof to show that the Clintons absolutely and unquestionably did something wrong. On the other hand, there's a lower burden of proof for "raises unsettling questions that will dog Hillary Clinton through a tough campaign," and that may already have been met.
The great mystery that remains is how this could have happened. The Clintons have known for a long while that Hillary would be running in 2016. And they ought to have known that accepting foreign donations, from folks who wanted things from the State Department, would become a problem for her candidacy. They certainly should have been aware that funneling all of her State Department e-mails through a private server, and then destroying them, would create terrible optics for her campaign and fuel any subsequent scandals. Why, then, did two such tenacious, wily campaigners proceed with this nonsense?