"We no longer believe him when he wants us to believe him," says CNN Senior Political Analyst David Gergen on President Trump's big and little lies. "It's very difficult to govern and to lead other people if they fundamentally don't believe you are telling them the truth." | CNN Replay

"In terms of what we normally look for at the United Nations, her resume is very thin." David Gergen reacts to reports that the President is expected to name Heather Nauert his new ambassador to the UN. "This is a risky move for Trump," adds former State Department Spokesperson Jen Psaki. https://cnn.it/2UlfIah | CNN Replay