Henderson, Nevada (CNN) Democratic presidential candidate Sen. Bernie Sanders on Thursday rejected the notion that he did not support Hillary Clinton after he lost to her in 2016.

Sanders was asked at a town with seniors in Nevada if he would support the eventual Democratic nominee, to which he answered, "absolutely and positively yes." A woman in the audience interjected, "Where were you in the last election, you didn't do that?"

Sanders was quick to defend his support of Clinton in the general election in 2016.

"Oh really? I didn't know that," he responded. "I thought I ran all over the country into Nevada and everybody else working as hard as I humanly could to see that Hillary Clinton was elected president of the United States."

"And one of the things, I take a little bit of umbrage at, OK, is just that," he added.

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