Democratic presidential front-runner Hillary Clinton
Hillary Rodham ClintonRepublicans dismiss growing protests at home Chaffetz: Crowd used 'bullying and intimidation' at town hall Report: Trump taunts Dems for letting 'Pocahontas' Warren become 'face of your party' MORE said she feels bad for the young people who believe what rival Bernie Sanders
Bernie SandersWhite House adviser Stephen Miller to make Sunday show rounds Sanders, Schumer call for nationwide pro-ObamaCare rallies Sanders: Trump 'does not understand' the Constitution 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."
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."