So Trump sets up a family foundation; Donald J. Trump Foundation. Stops funding it gets others to fund it instead. Which is basically unheard of for a family foundation.
https://www.washingtonpost.com/r/2010-2019/WashingtonPost/2016/09/11/National-Politics/Images/trumpfoundationchart.gif
Then the Florida AG starts looking into Trump University, and then using other people's money by having the Trump Foundation donate $25,000 to her political campaign.
Then that dastardly media figures out the shellgame he's playing. Oops! So he makes a contribution (for the first time in 8yrs) of $25,000 to his foundation. But it's really a reimbursement for that 2013 campaign donation that his Foundation should have never donated to.
This is why we'll never see his tax returns. He's an Ebenezer Scrooge. He doesn't contribute to charity, but he'll use others money to make him look charitable.
A chronic shorter in paying his bills.