Citizens for Responsibility and Ethics in Washington lodged the complaint on Thursday. They say Trump attorney Michael Cohen's $130,000 payment may have been a loan to Trump, and if so, needed to be disclosed.
Stormy Daniels, whose real name is Stephanie Clifford, has claimed that the payment was part of a hush agreement to ensure she didn't share details of an affair she had with Trump. Cohen has said he paid Clifford out of his own pocket and denied being reimbursed.