Question: The 7th director of the Federal Bureau of Investigation, James Comey, was dismissed who had been under public and political pressure in his role in which controversy that involves communication of classified information of a prominent U. S. politician?

Context paragraphs:
James Comey: James Brien Comey Jr. (born December 14, 1960) is an American lawyer who served as the seventh Director of the Federal Bureau of Investigation (FBI) from September 4, 2013 until May 9, 2017.  Comey has been a registered Republican for most of his life, but is now independent.

National Security Higher Education Advisory Board: The National Security Higher Education Advisory Board (NSHEAB) was created by American Federal Bureau of Investigation (FBI) Director Robert S. Mueller III on December 15, 2005.  Operated by the FBI and paneled by approximately 20 American university presidents and chancellors, the expressed purpose of the board is "to foster outreach and to promote understanding between higher education and the Federal Bureau of Investigation."  The board also facilitates communication between universities and federal authorities on "national priorities pertaining to terrorism, counterintelligence, and homeland security."  NSHEAB meets approximately three times yearly and includes representatives from the Central Intelligence Agency and other security agencies.

Stewart Nozette: Stewart David Nozette (born May 20, 1957) is an American planetary scientist, technologist, and consultant who worked for the United States Department of Energy, the United States Department of Defense, DARPA, the United States Naval Research Laboratory, and NASA.  He is also a convicted felon for attempted espionage and fraud against the United States.  The FBI arrested him October 19, 2009, charging him with attempted espionage after a sting operation which Nozette's lawyer claims amounted to entrapment.  At trial, Nozette admitted attempting to sell U.S. classified information to someone he believed was an Israeli Mossad operative, but was in reality an undercover Federal Bureau of Investigation employee.  He pleaded guilty to one charge of attempted espionage and was sentenced, under the terms of a plea bargain, to thirteen years in prison and is now serving time at the Federal Correctional Institution, Terre Haute.  The FBI found no evidence that any classified materials were actually released to anyone outside the US Government.

Dismissal of James Comey: James Comey, the 7th director of the Federal Bureau of Investigation (FBI), was dismissed by U.S. President Donald Trump on May 9, 2017.  Comey had been under public and political pressure as a result of both the FBI's role in the Hillary Clinton email controversy and the FBI's investigation of Russian interference in the 2016 U.S. elections, which also involves a possible collusion with the 2016 Donald Trump campaign.

Standard Form 312: Standard Form 312 (SF 312) is a non-disclosure agreement required under Executive Order 13292 to be signed by employees of the U.S. Federal Government or one of its contractors when they are granted a security clearance for access to classified information.  The form is issued by the Information Security Oversight Office of the National Archives and Records Administration and its title is "Classified Information Nondisclosure Agreement."  SF 312 prohibits confirming or repeating classified information to unauthorized individuals, even if that information is already leaked.  The SF 312 replaces the earlier forms SF 189 or the SF 189-A.  Enforcement of SF-312 is limited to civil actions to enjoin disclosure or seek monetary damages and administrative sanctions, "including reprimand, suspension, demotion or removal, in addition to the likely loss of the security clearance."

Classified information: Classified information is material that a government body claims is sensitive information that requires protection of confidentiality, integrity, or availability.  Access is restricted by law or regulation to particular groups of people, and mishandling can incur criminal penalties and loss of respect.  A formal security clearance is often required to handle classified documents or access classified data.  The clearance process usually requires a satisfactory background investigation.  Documents and other information assets are typically marked with one of several (hierarchical) levels of sensitivity—e.g. restricted, confidential, secret and top secret.  The choice of level is often based on an impact assessment; governments often have their own set of rules which include the levels, rules on determining the level for an information asset, and rules on how to protect information classified at each level.  This often includes security clearances for personnel handling the information.  Although "classified information" refers to the formal categorization and marking of material by level of sensitivity, it has also developed a sense synonymous with "censored" in US English.  A distinction is often made between formal security classification and privacy markings such as "commercial in confidence".  Classifications can be used with additional keywords that give more detailed instructions on how data should be used or protected.

Jackie Presser indictment scandal: The Jackie Presser indictment scandal was a legal and political scandal which began on June 1, 1984.  The scandal erupted after attorneys with the United States Department of Justice initiated a prosecution of Teamsters President Jackie Presser on various charges, including fraud and labor racketeering, only to cease prosecution once it was revealed that Presser had been a criminal informant for the Federal Bureau of Investigation (FBI) since the early 1970s.  Department of Justice (DOJ) officials came under intense political pressure to resume prosecution, while Presser's attorneys claimed that Presser had permission from DOJ to engage in the alleged crimes in order to mislead organized crime figures.  It was later revealed that FBI and DOJ officials may not have kept investigators in other federal agencies and Congress fully informed of Presser's role, and that FBI agents may have overstepped their authority in giving Presser permission to commit crimes.  The scandal largely ended after Presser's death on July 9, 1988.

Sigurdur Thordarson: Sigurdur Thordarson (Sigurður Ingi Þórðarson) was born in 1992 in Reykjavík.  He is known for his involvement with the whistleblowing organization WikiLeaks, as well as his interactions with the Federal Bureau of Investigation (FBI).  In 2010 he was arrested for stealing and leaking classified information about the bank structure in Iceland.  He obtained the information from a lawyer that aided wealthy people in tax evasion, whose name was Gunnar Gunnarsson.  Gunnar worked for an investment firm called Milestone ehf.  Gunnar obtained Sigurdur's services to set up computer systems and delete data.  After Sigurdur was arrested he was introduced to Julian Assange, the editor and founder of WikiLeaks.  Sigurdur started his time there in early 2010, and participated in preparing many of WikiLeaks's biggest leaks.  After a year in WikiLeaks service Sigurdur was suspected of embezzling funds from the WikiLeaks online store.  WikiLeaks filed criminal charges against Sigurdur with the Metropolitan Police of Iceland, who investigated the case and later dropped it due to lack of evidence.  Sigurdur later plead guilty to the embezzlement along with other economic crimes, in 2013.  Sigurdur was ordered to pay the victims 15 million ISK (roughly $115,000)

Andrew McCabe: Andrew George McCabe (born May 5, 1968) is an American attorney who is the Deputy Director of the Federal Bureau of Investigation.  On May 9, 2017, McCabe became Acting Director of the FBI after James Comey was dismissed by President Donald Trump.  He served as Acting FBI Director until August 2, 2017.

Hillary Clinton email controversy: In March 2015, it became publicly known that Hillary Clinton, during her tenure as United States Secretary of State, had used her family's private email server for official communications, rather than official State Department email accounts maintained on federal secure servers.  Those official communications included over 100 emails which contained classified information at the time they were sent, as well as nearly 2,100 emails which were not marked classified but would retroactively be ranked as classified by the State Department.

Supporting paragraphs: Dismissal of James Comey Hillary Clinton email controversy
Answer: Hillary Clinton email controversy