The Rhode Island Ethics Commission voted Tuesday to investigate a complaint filed by the state Republican Party related to Gov. Gina Raimondo’s support for a contract extension for gambling company IGT.

The GOP alleges that Raimondo’s support for the deal financially benefited Donald Sweitzer, formerly IGT’s chairman and now a lobbyist for the company. He also serves as treasurer of the Democratic Governors Association, which is chaired by Raimondo.

The Ethics Commission will now investigate the GOP’s charge.

The commission dismissed the GOP’s allegation that Raimondo’s support for a 20-year no-bid contract extension for IGT violated the state code of ethics. Raimondo has said her support for the deal is based on IGT’s status as a Rhode Island-based company with a workforce of about 1,000 employees.

The General Assembly is expected to hold hearings on the proposed IGT contract extension later this year.

In a statement, the RI GOP called on the legislature to hold off until the Ethics Commission resolves the status of the complaint against Raimondo: “The people of Rhode Island deserve to know all the facts about the Raimondo-Sweitzer-IGT connection before any legislator is asked to vote on a $20 billion no-bid contract for IGT.”

Jonathan Berkon, a Washington, D.C.-based lawyer representing Raimondo before the Ethics Commission, said the GOP’s allegations against the governor remain unsubstantiated.

“We applaud the Ethics Commission’s decision to throw out one of the two claims filed by the state Republican Party,” Berkon said via email. “We are confident that when the Ethics Commission reviews the facts relating to the other claim, it will once again conclude this latest partisan complaint has no merit.”