Bruce Springsteen says America faces a "harrowing" future if GOP Reps. Marjorie Taylor GreeneMarjorie Taylor GreeneGOP efforts to downplay danger of Capitol riot increase The Memo: What now for anti-Trump Republicans? Rep. Marjorie Taylor Greene says she's meeting with Trump 'soon' in Florida MORE (Ga.), Matt GaetzMatthew (Matt) GaetzVigilantes are not patriots Greene: McCarthy 'doesn't have the full support to be Speaker' Marjorie Taylor Greene introduces bill to award Congressional Gold Medal to Rittenhouse MORE (Fla.) and "our ex-fearless leader" former President TrumpDonald TrumpOmar, Muslim Democrats decry Islamophobia amid death threats On The Money — Powell pivots as inflation rises Trump cheers CNN's Cuomo suspension MORE are in charge.

The "Born to Run" singer appeared on CBS's "The Late Show" on Monday to promote his new book with former President ObamaBarack Hussein ObamaHead of North Carolina's health department steps down Appeals court appears wary of Trump's suit to block documents from Jan. 6 committee Patent trolls kill startups, but the Biden administration has the power to help  MORE, "Renegades: Born in the U.S.A."

Asked by host Stephen ColbertStephen Tyrone ColbertThe Hill's 12:30 Report: Jobless claims drop to 50+ year low Brian Williams to leave NBC News after 28 years Katie Couric: CNN shouldn't have let Chris Cuomo 'yuk it up' with brother Andrew during pandemic MORE to explain an introduction to the book in which he wrote that "these are treacherous times with much at stake," Springsteen replied, "Do you want Marjorie Taylor Greene, Matt Gaetz, [Republican Florida Gov.] Ron DeSantisRon DeSantisDemocratic frustration growing over stagnating voting rights bills A sad reality: In a season of giving, most will ignore America's poor Walt Disney World pauses vaccine mandate after DeSantis signs new legislation MORE and our ex-fearless leader deciding the fate of the American experiment?"

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"That's what I define as treacherous," Springsteen — a frequent critic of Trump who narrated a campaign ad for President BidenJoe BidenCDC working to tighten testing requirement for international travelers On The Money — Powell pivots as inflation rises Overnight Energy & Environment — Presented by ExxonMobil — Manchin seeks 'adjustments' to spending plan MORE during the 2020 White House race — told Colbert.

The performer said despite the political climate and the riot at the Capitol on Jan. 6, he remains hopeful: "You have to be a fighting optimist, I believe. In the sense that there was an attempt to overturn a free and fair election — they failed."

"I mean, it's cliche, but how do you remain optimistic?" Springsteen continued, "I've got young kids. I have to. I don't have a choice."

"The other choice is unthinkable," the Broadway performer and father of three told Colbert.

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"I have to remain optimistic and seeing them — my kids were out at the George Floyd, Black Lives Matter protests — seeing the diverse group of young people in the streets the day after the election."

"It's a cliche, but I think that's what keeps me optimistic," Springsteen, 72, said to applause.

"I think there's a great generation of young people coming up who will be interested in protecting American democracy and things like the fundamental right to vote — all which has been sort of an endangered species at the moment," he said.