One of the major events that occurred during her tenure as Secretary of State, which had a profound impact on her later political career, was the attack on the American embassy in Benghazi, Libya. The attack happened on September 11th, 2012, resulting in deaths of the ambassador J. Christopher Stevens, and another embassy official. Clinton's potential role in this tragic event became a matter of public scrutiny. Questions were raised as to her failure to realize the danger of trying to open a permanent consulate in Benghazi at that time, and her ignorance of the actual circumstances into which she sent ambassador Stevens. Whether Clinton was actually accountable in this matter or was she accused of it for political reasons is debatable. Nevertheless, the fact remains that the event happened during her mandate as Secretary of State, putting a certain degree of formal responsibility on her.
The following year, Clinton resigned her position as Secretary of State, having been resolved to serve only one term at this post. Although speculations have been made as to the Benghazi affair having something to do with her resignation, on the whole, her tenure as a Secretary of State could not be deemed unsuccessful. In fact, there were opinions coming from high government officials that she ran the State Department in the most effective way. Moreover, she made significant diplomatic efforts worldwide, visited more countries than any Secretary of State has ever done, and led the US response to Arab Spring, supporting some regimes, while backing protesters against others.
Generally speaking, her political career was going the right way at the time of her resignation from State Department in 2013. Clinton had everything going for her in her pursuit of the Democratic presidential nomination for elections in 2016.
Hillary Clinton's involvement in E-Mail scandal
A rather unexpected issue came to threaten Clinton's further political career. It became apparent that during her tenure as Secretary of State, Clinton continuously used a personal e-mail account for her official communications instead of a government account, thus violating State Department protocols. Mrs. Clinton neither had an official governmental e-mail address during the four years she served as the Secretary of State, nor did her aids take any action to preserve her e-mails on federal government servers.
In addition to the fact that the use of personal e-mail accounts led to classified information being stored outside secure government systems, all electronic communications made by the Secretary of the State should have been a matter of public record, which was not the case with Clinton's communications. The personal server she used did not store e-mails in databases which were accessible to the public.
Subsequently, tens of thousands of e-mails were made public by Clinton's staff members, in an attempt to show that she was not hiding anything and was ready to submit all her official communications to scrutiny by the American nation. However, a number of e-mails were deleted for reasons of being of a personal nature. This opened the door to speculation whether she could have deleted anything which was the least bit politically compromising by simply ruling it to be personal. Obviously, Clinton could have been completely truthful, but there was just no way to prove one way or the other.
Demands were made for Clinton to release her entire server to be publicly inspected which has still not happened. Public confidence in Clinton has weakened at least to a certain degree, as the result of the e-mail affair. Using e-mails sent through a privately maintained server was a serious breach of conduct expected from a high government official. It undermined the expectancy of transparency asked from any Secretary of State by the American public and raised a question whether Clinton actually had anything to hide, or what her motives for using a personal e-mail account for official communications might have been.
As the e-mail scandal came on top of Clinton's previous involvement in the Benghazi affair, public concern about her knowledge of potential dangers in Benghazi and responsibility for the death of an American ambassador became even greater, as did the uncertainty in her truthfulness and transparency of her actions. The requested release of all documents from the personal e-mail server could potentially clear the air once and for all in this matter.
Certainly, an insight into Clinton's official communications as Secretary of State could allow the public to get all the facts on her true role in the Benghazi affair, and to understand whether her responsibility was merely formal, as the responsibility of someone positioned high in the chain of command but not informed on all the relevant security issues by her personnel, or she was actually culpable of gross negligence of security procedures leading to a death of the United States ambassador.