The Clinton family's mega-charity took in more than $140 million in grants and pledges in 2013 but spent just $9 million on direct aid.

The group spent the bulk of its windfall on administration, travel, and salaries and bonuses, with the fattest payouts going to family friends.

"It seems like the Clinton Foundation operates as a slush fund for the Clintons," said Bill Allison, a senior fellow at the Sunlight Foundation, a government watchdog group where progressive Democrat and Fordham Law professor Zephyr Teachout was once an organizing director.

– From last year's post: Senior Fellow at Sunlight Foundation Calls the Clinton Foundation "A Slush Fund"