Washington( CNN) James Comey, anointing himself as America's moral conscience, called on the nation to recognize that Donald Trump's actions add up to an immoral, malignant presidency that insults core democratic values.

“The foundation of this country is in jeopardy when we stop measuring our leaders against that central value of the truth, ” Comey said in an exclusive interview with ABC News chief anchor George Stephanopoulos.

His indictment came at the start of a media blitz to promote his book “A Higher Loyalty, ” publishing Tuesday — 11 months after he was fired. The action sparked claims the President was trying to obstruct justice over the Russia probe and led to the appointment of a special counsel.

Trump unloads on Twitter at Comey