Update (8:40 pm ET): The FBI informant who helped the Justice Department secure a conviction against the top official from the US subsidiary of Rosatom, the Russian atomic energy agency, but was blocked by the Obama Justice Department from testifying about Russian efforts to bribe and extort their way into possession of North American uranium assets – a process which was cleared by both Hillary Clinton's State Department and Robert Mueller's FBI – has as of moments ago been cleared to testify, the Justice Department announced on Wednesday evening.

The informant, who has yet to be named – perhaps out of concerns about his or her life – is being represented by Victoria Toensing, a former Reagan Justice Department official and former chief counsel of the Senate Intelligence Committee. Toensing joined Grassley in urging Attorney General Jeff Sessions to appoint a special prosecutor to investigate the Uranium One deal, which was approved in 2011 by a committee on which former Secretary of State Hillary Clinton sat. Around the time the deal was approved, Bill Clinton received a $500,000 speaking fee from a bank with ties to the Russian government, as well as millions more in "charitable contributions" to the Clinton Foundation from entities with ties to the Russian government. Russia's Tenex nuclear sales arm also secured billions in new American nuclear fuel contracts around the same time.