Coburn said he was inspired to draft an amendment on the issue after reading a recent ESPN article. The article reported that more than 100 charities run by high-profile athletes were not efficiently and effectively using money.

“All it is, is a study asking them to tell us how bad the problem is and how we can fix it,” Coburn said.

Coburn said the federal government should make sure that wealthy athletes are paying their fair share in taxes and not using charities as a way to avoid paying a higher tax rate.

The Senate is considering the Marketplace Fairness Act, S. 743, which would empower states to collect taxes on purchases made online by consumers in their states.

Coburn said he might offer the amendment again at a later date.