White-collar crime experts offered various reasons for the special counsel's decision.
The Republican-controlled Congress faces a January 19 deadline to keep the government open.
Wray and Rosenstein were seen leaving Hart Senate Office Building from what appeared to be the Senate Intel Committee.
The agency published two documents: a statement from Jeff Sessions and a letter from acting director Andrew McCabe.
Multiple reports on Monday indicated that Trump's legal team is bracing for an encounter with Mueller, New York Magazine reports.
President Trump directed White House counsel to urge Attorney General Jeff Sessions to not recuse himself from the Russia probe.
Mueller may continue with his investigation into Trump's alleged ties to Russia far longer than the White House has planned.
Attempts to repeal Obamacare, the GOP tax bill and President Donald Trump's shuffling administration are some of 2017's biggest stories.
Top Republicans on the House Intelligence Committee expect to wrap up their Russia probe in the coming weeks, according to NBC News.
Trump fired Flynn only 24 days into his tenure as national security advisor.
President Trump said "it's a shame what's happened" with the FBI, calling the agency's handling of the Hillary Clinton email investigation "disgraceful."
President Trump's "FBI in tatters" tweet has been met with unethical responses from James Comey, Eric Holder and others, says Jake Novak.
A series of tweets by U.S. President Donald Trump about the investigation into contacts between his 2016 campaign and Russia prompted concerns on Sunday among both Democratic and Republican lawmakers.
The latest developments about Michael Flynn are "very, very, very bad," a source close to the president said, according to NBC News.
Tax cuts duke it out with Trump's legal problems for control over the stock market's momentum.
Former FBI Director James Comey wrote what appeared to be a biblical subtweet to his social media followers on Friday.
Michael Flynn admits lying to the FBI about his discussions with Russia's ambassador to the United States.
The firing is reportedly being investigated by Special Counsel Robert Mueller as a possible attempt to obstruct justice.
The request is connected to an investigation into whether President Donald Trump sought to obstruct justice by firing the FBI director.
President Trump could sack Special Counsel Robert Mueller, but it would not be as simple as firing one person, Vox reports.