Rep. Maxine Waters plans to bring a privileged resolution to the floor that calls for an independent investigation of the House ethics committee.
Waters (D-Calif.) has accused the ethics panel of having a weak case against her after it called off her trial last month, citing the discovery of new evidence.
A draft resolution obtained by CNN asks the House Speaker to "appoint a bipartisan task force to investigate the circumstances and cause of the decision" to place two committee lawyers on administrative leave following missteps made in the investigation.
The resolution asks that the panel "report its findings and recommendations to the House of Representatives during the second session of this Congress."
The move is the latest act of defiance by Waters, a senior member of the House Financial Services Committee, against the ethics committee.
A privileged resolution forces the House to vote on the matter within two days.
An investigative subcommittee of the ethics panel charged Waters with three counts of violating ethics rules for helping to set up a meeting between Treasury officials and OneUnited bank. Waters's husband owns thousands of dollars in OneUnited stock and previously served on its board.
But the committee experienced a setback by indefinitely delaying the Waters trial immediately after it scored a victory by recommending censure for veteran Rep. Charles Rangel for violating 11 counts of House ethics rules.