FDNY Firefighter Seriously Injured on 9/11 Donates Kidney to Stranger

'He's Actually Outside': 'Fox & Friends' Surprises Navy Sailor's Family For Christmas

Former Secret Service Agent Dan Bongino said a major "housecleaning" has to take place at the FBI to restore the public trust.

"Or, we're going to all be in a lot of trouble," Bongino said.

The former Maryland Congressional candidate added that during his time in the U.S.S.S., he came to know how hard the rank-and-file federal agents work and how diligent they are.

"None of this is in any way an indictment of the working men and women of the FBI," he said. 

Bongino said that, nonetheless, people are beginning to question actions reportedly taken by high-ranking officials like Agent Peter Strzok and Deputy Director Andrew McCabe.

"If America loses faith in the FBI... we're going to be in a really, really dark place," he said.

Bongino said an investigation must find out what Trump election "insurance policy" Strzok and his mistress, Lisa Page, were discussing in text messages recently made public.

He wondered aloud whether the "insurance policy" was the unverified Trump dossier that included salacious allegations against the president.

"You may be looking at a Congressional investigation - forget retirement," he said of McCabe, who is eligible to leave the agency in March.

McCabe's record recently came under additional scrutiny after it was discovered his wife received several hundred thousand dollars from a PAC connected to outgoing Virginia Gov. Terry McAuliffe (D) - a key Hillary Clinton confidant.

Watch more above.

Watters: Robert Mueller 'Basically the Democrat Candidate for President' in 2020

Wallace Looks Ahead to 2018 Midterms: 'Going to Be a Tough Election for Republicans'