WATCH: Expert tells Dan Bongino that George Soros is backing soft-on-crime district attorneys as crime doubles

Following the successful recall of San Francisco District Attorney Chesa Boudin, author Matt Palumbo joined Fox News' Dan Bongino on Sunday to discuss far-left billionaire George Soros supporting soft-on-crime prosecutors.

Palumbo, who is the author of The Man Behind the Curtain: Inside the Secret Network of George Soros, explained that Soros, who has always taken a strong interest in American politics, has seen the greatest success through funding progressive candidates in local races.

"He's been interested in our presidential elections where he spends hundreds of billions of dollars. But his real success has been in these local races where, you know, $100 million in a presidential election might not move the needle that much but spending two or three hundred grand in a local DA race, where not much money is being spent, will have an impact," Palumbo told Bongino.

"It also gives him much more direct control over people. When the DA is in charge of an area, they have choices over sentencing decisions, what kind of crimes are getting enforced, all sorts of things that pertain to law and order," Palumbo explained. "You don't need to go through any legislative process. You just pick up...and they pretty much do his bidding for him."

Quoting a report from Daily Mail journalist Harriet Alexander, Bongino stated that "George Soros backed groups have spent $40 million to elect 75 progressive prosecutors over the last decade – meaning one in five Americans now live in areas covered by his criminal justice reformers."

On the result of these soft-on-crime progressive DA's getting elected, Palumbo said that violent crime tends to skyrocket. He explained that when the District Attorneys get elected into office, one of the first tasks they complete is firing current prosecutors with decades of experience and replacing them with like-minded friends.

"They'll staff our offices with people who really have no idea what they're doing and then they stop enforcing a lot of quality-of-life offenses. They're under sort of this delusion that if it's not a violent crime, it doesn't count" Palumbo told Bongino. "But then on violent crime, too. In most of these cities, you see a near doubling of violent crime and also the murder rate."

Aside from being a bestselling author, Matt Palumbo is also the editor of "Bongino Report."