A surprising number of the controversies and scoops that surface in televised debates and interviews started with Kaczynski's four-person team, called the K-File.

They pointed out Hillary Clinton's error when she asserted that all four of her grandparents were immigrants. They found the video where Ben Carson said he thought the pyramids were built to store grain.

They watched enough video (an estimated 3,000 hours overall) to know that Donald Trump's claims of consistently opposing the U.S. invasion of Iraq are not supported by the record. …

In recent months, the K-File team has been able to direct the attention of campaigns and the press toward various overlooked facets of candidates' histories. For example, they found a 1996 clip where Hillary Clinton referred to certain children as "superpredators."

The team also unearthed a 1985 video clip in which Bernie Sanders proclaimed admiration for Sandinista leaders in Nicaragua and Fidel Castro's regime in Cuba.