Former New Hampshire Gov. Chris Sununu joins NewsNation's Chris Cuomo to discuss a moment on CNN where host Anderson Cooper mumbled an insult under his breath. Cooper apologized and Sununu says he took the jibe as a political argument getting too casual for cable news.

Tempers flared on CNN when host Anderson Cooper snipped at former New Hampshire Gov. Chris Sununu in a moment that he later admitted resorted to “mean” name-calling. Sununu appeared Tuesday on Anderson Cooper 360 in defense of the Department of Government Efficiency.