On April 6, 2017, Nunes temporarily stepped aside from leading the Russia investigation while the Office of Congressional Ethics investigated whether he had "made unauthorized disclosures of classified information, in violation of House Rules, law, regulations, or other standards of conduct" in his March press conference. He called the charges "entirely false and politically motivated". On April 12, 2017, sources from both the Republican and the Democratic parties said the original documents Nunes cited did not support Trump's claims that the Obama administration acted illegally or unusually.