House GOP leaders have launched an internal review into how someone secretly recorded and leaked audio of a private 2016 leadership meeting in which Majority Leader Kevin McCarthy (R-Calif.) jokes about how Russia is paying off President Trump.

Sources familiar with the review told The Hill that GOP leadership is currently researching what federal statutes or House rules could be applied to hold the leaker accountable. Speaker Paul Ryan (R-Wis.) has voiced concerns that more audio recordings of sensitive leadership discussions could be leaked.

Leaders are also trying to figure out whether the individual who recorded the meeting passed or sent the audio of the high-level, closed-door meeting to a foreign government or foreign agent. National security and foreign policy implications are being evaluated as well, sources said.

“I believe it is important that these questions get answered,” said a GOP lawmaker familiar with leadership’s review. “I suspect this is only going to become more and more common.”