Bernie Sanders Bernie SandersButtigieg stands in as Pence for Harris's debate practice Bernie Sanders warns of 'nightmare scenario' if Trump refuses election results Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE gave a fiery response to a supporter while campaigning for Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE on Tuesday.

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While talking about bringing people together, a member of the crowd shouted “stop the Dakota pipeline!”

“Damn right,” Sanders quickly responded. “That is one of the issues, but there are many others.”

Last week, the Vermont senator called on President Obama to stop the construction of the Dakota Access Pipeline, which would transport crude oil from North Dakota across four states, until federal officials can conduct a cultural and environmental review.

Clinton’s campaign released a statement on the pipeline Thursday, saying “she thinks all voices should be heard and all views should be considered in federal infrastructure projects.”

In recent days protesters blocking the pipeline’s path have clashed with police.