Sen. Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.) scolded a CNN anchor on Friday for asking him about the 2020 presidential election.

Host Chris Cuomo on CNN’s “New Day” was interviewing Sanders about his new book, “Guide to Political Revolution.” Cuomo speculated on whether Sanders would run again or back a younger candidate with a progressive message.

"Well there is a third school of thought, Chris, and that is that the media never, ever gives up," said Sanders. "And instead of focusing on real issues, they keep talking about never-ending campaigns."

"Honestly, you've heard me say this to you before," he added.

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Cuomo responded that he has "never liked the answer" and insisted “it matters” who runs.

The exchange between the two was first highlighted by Mediaite.

Sanders ran a contentious bid against Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE for the Democratic nomination in 2016.

"Of course it matters who runs, but we don't need to have never ending elections, we just had an election six months ago," Sanders responded.

"We never stop elections, people are sick and tired of it. They want me to go back to Washington to deal with climate change, to deal with healthcare, to deal with education, to deal with issues that impact their lives," he continued. "They do not want to see never ending elections."

The senator said it is too early to decide if he will run again in 2020.

"The book reads like a campaign manual, that's all I'm saying, senator. You can yell at me all you want, I still think what I think," said Cuomo.

"I'm not yelling at you. I love you. Not yelling at you, Chris," Sanders said.