Democratic presidential front-runner Hillary ClintonHillary Diane Rodham Clinton2016 pollsters erred by not weighing education on state level, says political analyst Could President Trump's talk of a 'red wave' cause his supporters to stay home in midterms? Dem group targets Trump in M voter registration campaign: report MORE said she feels bad for the young people who believe what rival Bernie SandersBernard (Bernie) SandersCarbon tax could give liberals vast power to grow federal government Poll: Gillum leads DeSantis by 4 points in Florida Judd Gregg: Two ideas whose time has not come MORE says about her taking money from the fossil fuel industry.

"I feel sorry sometimes for the young people who believe this, they don't do their own research," Clinton said Sunday on NBC's "Meet the Press."

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"And I'm glad we now can point to reliable independent analysis to say no, it's just not true."

Clinton last week accused the Sanders campaign of lying about her taking donations from the fossil fuel industry.

“I am so sick of the Sanders campaign lying about me. I’m sick of it,” the former first lady said last week.

On Sunday, Clinton said she cares "passionately" about climate change and has been working to try to move us away from fossil fuels for many years. She said Sanders claims about her taking money from the fossil fuel industry have been "debunked."

"When people make these kinds of claims, which now I think have been debunked — Actually the Washington Post said 'Three Pinocchios' — and the New York Times analyzed it. Independent analysts have said that they are misrepresenting my record," she said.

The Washington Post gave Sanders's claim Three Pinocchios in its fact check, saying that the Vermont senator exaggerated the contributions Clinton received from the oil and gas industry, saying "in the context of her overall campaign, the contributions are hardly significant."

Sanders on Sunday defended the claim.

"I don't think that we are distorting reality," he said on CNN's "State of the Union." "That's the simple reality."