White House adviser Peter Navarro came out swinging against former President Barack Obama, former Vice President Joe Biden and China in a vigorous defense of the Trump administration's handling of the coronavirus crisis.

On Sunday morning, Navarro started off by calling Obama's administration a "kumbaya of incompetence."

Obama on Saturday had again jabbed the U.S. coronavirus response in a two-hour virtual commencement for graduates of historically black colleges and universities: "This pandemic has fully, finally torn back the curtain on the idea that so many of the folks in charge know what they're doing."