U.S. investigation into Russian interference in U.S. elections
The Robert Mueller special counsel investigation was an investigation into 45th U.S. president Donald Trump regarding Russian interference in the 2016 United States elections and was conducted by special prosecutor Robert Mueller from May 2017 to March 2019. It was also called the Russia investigation, Mueller probe, and Mueller investigation. The investigation focused on three points:
The investigation found no evidence that President Trump or any of his aides coordinated with the Russian government’s 2016 election interference. Though there was insufficient evidence of a criminal conspiracy, members of the campaign were indicted, including national security advisor Michael Flynn and the chair of the Trump presidential campaign, Paul Manafort. The investigation resulted in charges against 34 individuals and 3 companies, 8 guilty pleas, and a conviction at trial. The report did not reach a conclusion about possible obstruction of justice by Trump, citing a Justice Department guideline that prohibits the federal indictment of a sitting president. However, Attorney General William Barr pointed to ten episodes of potential obstruction. 
The investigation was created by Deputy Attorney General Rod Rosenstein. Former FBI director Mueller was chosen to lead due to a shortage of senate-confirmed U.S. attorneys. The dismissal of James Comey was a factor in the decision to use a Special Counsel. The Mueller investigation took over the FBI's investigation, Crossfire Hurricane. The Mueller investigation's scope included allegations of "links and/or coordination" between the Russian government and individuals associated with the Trump campaign. ;ref name="Mazzetti_Benner_3/24/2019" ; ;/ref ; Mueller was mandated to pursue "any matters that arose or may arise directly from the investigation." The probe included a criminal investigation that looked into potential conspiracy and obstruction of justice charges against Trump and members of his campaign or his administration.
The investigation concluded in March 2019. The report concluded that the Russian Internet Research Agency's social media campaign supported Trump's presidential candidacy while attacking Clinton's, and Russian intelligence hacked and released damaging material from the Clinton campaign and Democratic Party organizations. The investigation "identified numerous links between the Russian government and the Trump campaign", and determined that the Trump campaign "expected it would benefit electorally" from Russian hacking efforts. However, ultimately "the investigation did not establish that members of the Trump campaign conspired or coordinated with the Russian government in its election interference activities". Mueller said the conclusion on Russian interference "deserves the attention of every American".
On potential obstruction of justice by Trump, the investigation "does not conclude that the President committed a crime", as investigators would not indict a sitting president per an Office of Legal Counsel opinion. However, the investigation "does not exonerate" Trump, finding public and private actions "by the President that were capable of exerting undue influence over law enforcement investigations". The report states that Congress can decide whether Trump obstructed justice, and has the authority to take action against him. Attorney General William Barr and Deputy Attorney General Rod Rosenstein, decided on March 24, 2019, that the evidence was insufficient to establish a finding Trump committed obstruction of justice. Upon his resignation in May 2019, Mueller stated, "The Constitution requires a process other than the criminal justice system to formally accuse a sitting president of wrongdoing." In July 2019, Mueller testified to Congress that a president could be charged with obstruction of justice, or other crimes, after he left office.
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Original claims of Russian election involvement.
The first public US government assertion of Russian efforts to influence the 2016 election came in a joint statement on September 22, 2016, by Senator Dianne Feinstein and House member Adam Schiff, the top Democrats on the Senate and House Intelligence Committees, respectively. The US Intelligence Community released a similar statement fifteen days later.
In January 2017, an assessment was released by the Office of the Director of National Intelligence, then headed by Obama appointee James Clapper, which asserted that Russian leadership had favored presidential candidate Donald Trump over rival candidate Hillary Clinton, adding that Russian President Vladimir Putin had personally ordered an "influence campaign" to harm Clinton's electoral chances and "undermine public faith in the US democratic process". ;ref name="ODNI_1/6/2017" ; ;/ref ; It is alleged that the Russian government interfered in the 2016 presidential election by bolstering the candidacies of Trump, Bernie Sanders, and Jill Stein in order to increase political instability in the United States as well as to damage the Clinton presidential campaign.
Origin and powers.
Original FBI investigations.
When the special counsel was appointed by Rod Rosenstein in May 2017, the special counsel took over an existing counterintelligence investigation by the Federal Bureau of Investigation (FBI) into Russian interference in the 2016 United States elections and numerous secretive links between Trump associates and Russian officials. According to reports, Australian officials informed American officials that in May 2016, a Trump presidential campaign adviser, George Papadopoulos, told the Australian High Commissioner to Britain, Alexander Downer, that Russian officials were in possession of politically damaging information relating to Hillary Clinton, the rival presidential candidate to Trump from Democratic Party. Since the FBI, in response to this information, opened an investigation into the links between Trump associates and Russian officials on July 31, 2016, the meeting between Papadopoulos and Downer is considered to be the 'spark' that led to the Mueller investigation. In February 2018, the Nunes memo, written by staff for U.S. Representative Devin Nunes, stated that the information on Papadopoulos "triggered the opening of" the original FBI investigation, rather than the Steele dossier by Christopher Steele as asserted by Trump and his allies.
The special counsel also took over an FBI investigation on whether President Trump had committed obstruction of justice, which began within eight days after Trump's dismissal of FBI Director James Comey. CNN reported in December 2018 that then-acting FBI Director Andrew McCabe started the investigation based on Comey's firing—which had been recommended in writing by Rosenstein in what became known as the Comey memo—and also Comey's allegation that Trump had asked him to stop investigating Trump's former national security adviser Michael Flynn. In February 2019, McCabe confirmed he launched the obstruction of justice investigation for those reasons—before he was fired from the FBI for allegedly lying to FBI agents after he leaked information about investigation into Clinton Foundation to a reporter. He said he gave additional reasons such as Trump's multiple depictions of the investigation into Trump associates and Russia as a "witch hunt", as well as Trump allegedly telling Deputy Attorney General Rod Rosenstein to mention the Russia probe in Rosenstein's memo to recommend firing Comey, and Trump's comments to the Russian ambassador and NBC relating Comey's firing to the Russia probe.
Appointment and original oversight.
A special counsel investigation is subject to oversight by the attorney general. After questions arose regarding contacts between then-senator Jeff Sessions and Russian ambassador Sergei Kislyak in 2016, one of the first things Sessions did after being appointed attorney general, was to recuse himself from any Justice Department investigations regarding Russian interference in the election.
Once Attorney General Sessions recused, oversight of any Russia investigation into the 2016 election fell to the Deputy Attorney General Rod Rosenstein, a Trump appointee. As part of his oversight, Rosenstein appointed Robert Mueller as special counsel in May 2017 with the mandate "to oversee the previously-confirmed FBI investigation of Russian government efforts to influence the 2016 presidential election and related matters".
Rosenstein has said he would recuse himself from supervision of Mueller if he himself were to become a subject in the investigation due to his role in the dismissal of Comey.
Reasons for appointing a special counsel.
Firing of James Comey.
The special counsel appointment on May 17, 2017, came after protests, mostly from Democrats, over President Trump firing the FBI Director James Comey on May 9, 2017. In Congress, in reaction to Comey's firing, over 130 Democratic lawmakers called for a special counsel to be appointed, over 80 Democratic lawmakers called for an independent investigation, while over 40 Republican lawmakers expressed questions or concerns. Complicating the situation, Comey arranged to leak to the press classified information, notes from an interview with the president where Trump asked him to end the probe into Michael Flynn. Comey would later be rebuked by the Department of Justice's Office of Inspector General for this action. Trump fired Comey on the recommendations of Attorney General Jeff Sessions and Deputy Attorney General Rod Rosenstein, although Deputy Director of the FBI Andrew McCabe claimed Rosenstein did not want to write the recommendation to fire Comey, and only did so because Trump ordered him to.
"The New York Times" reported on January 11, 2019, that FBI counterintelligence grew concerned about Trump's ties to Russia during the 2016 campaign but held off opening an investigation because of uncertainty about how to proceed on such a sensitive matter. Trump's behavior during the days immediately before and after Comey's firing caused them to begin investigating whether Trump had been working on behalf of Russia against U.S. interests, knowingly or unknowingly. The FBI merged that counterintelligence investigation with a criminal obstruction of justice investigation related to Comey's firing. Mueller took over that investigation upon his appointment, although it was not immediately clear if he had pursued the counterintelligence angle.
"The New York Times" reported in August 2020 that Rosenstein curtailed a May 2017 FBI inquiry into Trump's personal and financial dealings in Russia, giving the bureau the impression that the special counsel would investigate it, though Rosenstein instructed Mueller not to.
Authority.
Deputy Attorney General Rod Rosenstein, in his role as Acting Attorney General for matters related to the campaign due to the recusal of Attorney General Jeff Sessions, appointed Mueller, a former Director of the FBI, to serve as Special Counsel for the United States Department of Justice (DOJ) with authority to investigate Russian interference in the 2016 United States elections, including exploring any links or coordination between Trump's 2016 presidential campaign and the Russian government; "any matters that arose or may arise directly from the investigation"; and any other matters within the scope of 28 C.F.R. § 600.4(a).
As Rosenstein later informed Congress, he elected to use a Special Counsel rather than have the FBI itself oversee the investigation because he did not believe acting Director of the FBI Andrew McCabe was the right person to lead the investigation. Instead, he would appoint a Special Counsel, as had been done in the past. U.S. Attorneys serve as special counsel, but in May 2017 there were only three Senate-confirmed U.S. Attorneys serving at the time, the Senate having not yet confirmed the new president's nominees, and those three had remained as holdovers from the previous administration pending the arrival of the new attorneys. As a result, Rosenstein decided to select Robert Mueller, though he was retired, because of his reputation.
As special counsel, Mueller had the power to issue subpoenas, hire staff members, request funding, and prosecute federal crimes in connection with the election interference along with other crimes he may uncover. The constitutionality of indicting a sitting president remains an unsettled legal question.
Release of findings.
The Special Counsel law requires a special counsel to confidentially provide the current attorney general with a report of findings. The attorney general, in this case William Barr, is then required to provide a summary of the findings to Congress, although he has considerable discretion in how much detail he provides. The full release of the Mueller findings to Congress and the public is not assured. Should Congress be dissatisfied with the summary it is provided, it could subpoena Mueller's full report, and, if necessary, sue in federal court. Congress could also call Mueller to testify.
White House attorneys expect to preview whatever findings Barr decides to provide to Congress and the public, in order to consider asserting executive privilege to withhold the release of information gleaned from internal documents and interviews with White House officials. Commentators have noted that executive privilege cannot be invoked if the purpose is to shield wrongdoing or unlawful conduct.
On March 14, 2019, the House voted 420–0 in favor of a non-binding resolution calling for the full special counsel report to be released to Congress and the public, excluding classified or grand jury information. The same day the bill was brought before the Senate for unanimous consent, but was blocked by Senator Lindsey Graham, who said it needed a clause requiring the appointment of a special counsel to investigate allegations against the