CNN obtained 417 pages of Treasury Department documents under the Freedom of Information Act. The records included the 1998 settlement, draft and final copies of a similar settlement in 2015, and exchanges between the Trump casino lawyers and federal regulators.
The 1998 settlement was publicly reported at the time, and the Associated Press noted it was the largest fine the federal government ever slapped on a casino for violating the Bank Secrecy Act.
But key details of the casino's cash reporting violations are missing from the publicly released documents, including the identities of the gamblers and casino employees involved in the transactions.
The congressional committees had asked the Treasury Department's financial crimes enforcement network, or FinCEN, to provide any information it has on Trump, his businesses, his top officials and campaign aides.
House and Senate investigators both said they had obtained access to data housed at Treasury's FinCEN -- which will include details of these violations and potentially more, according to sources familiar with the investigation.
Congressional investigators say they are interested in the global network of Trump's finances to determine if FinCEN's data shows connections between Trump associates and Russia.