Former Defense Secretary Mark Esper's view on the biggest threat facing America

Former Defense Secretary Mark Esper says the biggest threat facing America isn't Russian aggression, the global pandemic or an increasingly menacing China. It's "extreme political partisanship" in Washington.  

Esper, a lifelong Republican, argues lawmakers need to take less extreme positions on either side of the political aisle, which he says is the only way to break the "resulting dysfunction" in Washington and advance the nation's interests. He decries intraparty feuding while calling out his former boss, Donald Trump, for divisiveness and a lack of "core principles and integrity." 

"We need to pay less attention to the wings on these parties and more focus on the folks in the middle, whether it's Democrat or Republican," Esper said.