Strzok worked on FBI investigations into both Clinton's use of an email server and potential co-ordination between Russian Federation and Trump's campaign.
Strzok was removed from that role after anti-Trump text messages between Strzok and an Federal Bureau of Investigation attorney - Lisa Page, the woman with whom he was having an affair - were published.
The House hearing with Federal Bureau of Investigation agent Peter Strzok erupted into a shouting match Thursday afternoon after Texas GOP Rep. Louie Gohmert directly asked Strzok about his affair with former Federal Bureau of Investigation attorney Lisa Page. "This was not about getting answers from Strzok".
"I can't tell the good people of my state that I endorse a person who acts like that.' Was that you, Mr. Strzok?"
"My presumption [was] based on that frightful, disgusting behavior that the American population would not elect somebody demonstrating that behavior to be president of the United States", Strzok explained. "What does Trump support smell like Mister Strzok?"
"I've talked to Federal Bureau of Investigation agents around the country". "And I've talked to Federal Bureau of Investigation agents around the country".
Federal Bureau of Investigation agent Peter Strzok has always been one of - if not the - central villain in the Republican Party's (fictional) story of how "deep state" Democrats conspired to exonerate Hillary Clinton for her criminal email activity - and then launch a "witch hunt" aimed at destroying an innocent Donald Trump.
Strzok and Page had worked on the FBI's Russian Federation investigation and on the early days of Mueller's special counsel team. "But", he said, "the thought of exposing that information never crossed my mind".More news: Zsa Zsa dies weeks after being dubbed ‘World’s Ugliest Dog’
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Strzok struck a combative tone throughout the hearing, telling congressmen, "Today's hearing is just another victory notch in Putin's belt and another milestone in our enemies' campaign to tear America apart".
In the prepared remarks, Strzok acknowledges that while his text message criticism was "blunt", it was not directed at one person or political party, and included jabs not only at Trump, but also at Clinton as well as Sen. Both Strzok and Page were booted from Mueller's investigation past year after he discovered their texts.
The Justice Department's inspector general has criticized Strzok and Page for creating the appearance of impropriety.
FBI Director Chris Wray says employees who were singled out for criticism in the report have been referred to internal disciplinary officials.
The hearing lasted five hours and may resume on Monday.
Gohmert said he meant to ask Strzok about an allegation that the agent was told by Intelligence Community Inspector General's investigator Frank Rucker that an "anomaly" was found in the metadata within Clinton's unauthorized private email server.
Republicans, on the other hand, peppered Strzok with questions and expressed outrage that's been building for months.