Rosenstein made that move after President Donald Trump admitted that firing former FBI Director James Comey, who had been leading the Russian Federation investigation, had taken "great pressure" off of him.
Special counsel Robert Mueller has requested extensive records from the White House for his Russian Federation investigation, The Post's Carol D. Leonnig and Rosalind S. Helderman are reporting.
Mueller's office has provided a list of documents requested from the White House counsel's office, a legal source says.
Deputy Attorney General Rosenstein interviewed over FBI ex-director's firing: WSJ
The Oval Office meeting with Kislyak and Russian Foreign Minister Sergei Lavrov, meanwhile, may take the cake as far as unforced errors.
In June 2016, Trump Jr. agreed to meet a woman whom he thought was a Russian government lawyer who might have dirt on Democratic nominee Hillary Clinton.
Ty Cobb, the White House lawyer handling requests from Mueller's office, told Reuters, "Out of respect for the special counsel and its process, the White House does not comment on exchanges between the special counsel and the White House".More news: Frustrated consumers report credit freeze problems
Mr Mueller's investigation along with several congressional committees and the Justice Department are all looking at USA intelligence findings indicate Russian-backed hackers tried to sway the presidential election held last November in favour of Mr Trump.
US officials said Flynn had told the vice president that he had only exchanged holiday greetings with Kislyak, when in fact the two men had discussed economic sanctions against Russian Federation. Mueller's team of investigators is expected to interview current and former White House aides in coming weeks as part of that investigation, according to people familiar with the matter. Mueller has also asked for documents about how the White House responded to concerns raised by the Justice Department that Flynn might be subject to Russian blackmail for misleading Pence about the calls.More news: Red Sox: Fans broke rule of no signs hung at Fenway Park
It is not clear exactly when the conversation took place, or how long it lasted, but Rosenstein is relevant to Mueller's investigation because he authored a memorandum in May that the White House initially held up as justification for Comey's firing.
President Trump has denounced the investigation calling it "a witch hunt".
The areas include President Trump's decision to fire FBI Director James Comey (right).). More news: Features of the New Apple iOS 11 Release Available for iPhone & iPad
Three of Mueller's requests focus on Comey's firing.