It's another scandal for Hillary Clinton, but this time it's one of her supporters under fire!

The newly leaked Panama Papers have uncovered signs that a billionaire who has donated more than $15 million to the Clintons may have dodged taxes by setting up an offshore company with a notorious Panamanian law firm.

Haim Saban is an Israeli philanthropist who has a net worth of almost $4 billion. Saban built his fortune from entertainment, launching the "Power Rangers" TV franchise and holding a large stake in Univision.

Saban is also a close friend to both Bill and Hillary Clinton. He and his wife Cheryl have donated $3.5 million to Clinton's current presidential campaign and $12 million to the Clinton Foundation.

There is nothing inherently wrong with creating offshore accounts, but critics have said it raises questions about what someone could be hiding.

According to the leaked documents, the 72-year-old philanthropist established side businesses in offshore tax havens with help from Mossack Fonseca, the firm at the center of the Panama Papers data leak. These companies include Saban S.A., a company set up in the British Virgin Islands in 1998, and Saban Ventures Corp. registered in the Seychelles in 2008.

Clinton has promised that she would "close corporate tax loopholes and make the most fortunate pay their fair share."

Saban has declined to comment on the reports.