The fired head of the Homeland Security Department’s election security agency insisted that he and his team did “right” in 2020.

Chris Krebs, the former director of the Cybersecurity and Infrastructure Security Agency, spoke with CBS’s 60 Minutes in an episode that aired Sunday, stressing the United States should be confident in the outcome of the contest and that no domestic nor foreign actors changed any votes despite claims by President Trump and some of his supporters that the election was “rigged” or “stolen” to the benefit of President-elect Joe Biden.