Former White House chief strategist Stephen Bannon says Trump’s decision to fire FBI Director James Comey was the biggest political mistake in modern history. Bannon, now the chair of the far-right-wing Breitbart Media, made the comments while speaking with Charlie Rose of “60 Minutes.”

Charlie Rose: “Someone said to me that you described the firing of James Comey—you’re a student of history—as the biggest mistake in political history.”

Stephen Bannon: “That would be probably—that’d probably be too bombastic even for me, but maybe modern political history.”

This clip didn’t actually appear in the “60 Minutes” piece. They posted it online Sunday night.