Washington( CNN) Ask Sen. John McCain if he watches a comparing between Chairmen Donald Trump and Ronald Reagan and the veteran Republican answers without hesitation.

“No, I don’t, ” he told David Axelrod on “The Axe Files, ” a podcast from the University of Chicago Institute of Politics and CNN.

McCain said he found “appalling” Trump’s assertion in an interview earlier this year that the US absence the moral stand to topic Russian President Vladimir Putin’s human rights abuses. “We’ve got a lot of murderers . What do you think, our country’s so innocent? ” Trump told at the time.