2016 Presidential Election: 20 WTF Moments
5. Hillary's E-Mail Controversy
It was revealed in March 2015 that Hillary Clinton had used her private e-mail server to conduct official governmental communications, rather than using secure government servers.
In the midst of Clinton's campaign, this of course shone a huge light of skepticism on her, with the FBI concluding that no charges should be filed but nevertheless branding her "extremely careless".
Further investigations were made throughout the entirety of Clinton's campaign, but ultimately the damage was basically done for those who interpreted her acts as sloppy and not acting in the interest of national security.
Say what you will about Trump, he at least ran a much tighter ship than this.