Strzok was a key figure in two of the FBI's most high-profile investigations: the probe into Hillary Clinton's use of a private email server and the separate examination of whether President Trump's campaign coordinated with Russia to influence the 2016 election. Strzok was a particular focus of the recently released Justice Department inspector general report, which uncovered an August 2016 text message in which he told an FBI lawyer "we'll stop" Trump from making it to the White House.