One of the Democratic Party’s potential contenders for president failed to recite part of a historical statement about American colonies becoming independent of British rule.

Joe Biden was caught on video at his Texas campaign speech appearing to be unable to recall the preamble of former President Thomas Jefferson’s 1776 Declaration of Independence.

“We hold these truths to be self-evident,” he said on a video shared on Twitter. “All men and women are created, by the, you know, you know the thing.”

The former vice president especially raised eyebrows when he left out the word “equal” and then described the creator of the universe as the “thing.”

The correct version from the National Archives states: “We hold these truths to be self-evident that all men are created equal; that they are endowed by their creator with certain unalienable rights; that among these are life, liberty, and the pursuit of happiness.”

The audience was later surprised to hear Biden finish up his request for volunteers, donations, and unconditional vote for Rep. Sheila Jackson Lee (D-Texas). The presidential candidate appeared to be confused about what day the presidential primary election would be held.

“[Join us,] sign up, volunteer, contribute if you can but we need you very badly,” he said on another video shared on Twitter. “Every vote matters tomorrow, most important vote to make sure is not going to be any problem is that you resend back Rep. Sheila Jackson Lee (D-Texas) as the nominee without any question. Look, tomorrow is Super Thursday … Tuesday and I wanted to thank you all.”

Biden has previously made errors while delivering his speeches. Fox News caught the candidate telling supporters in South Carolina that he was standing for election for the “United States Senate.”

“You are ones who sent Barack Obama to presidency and I have a simple proposition here: I am here to ask you for your help,” he said in a video shared on Twitter. “My name is Joe Biden, I am a Democratic candidate for the United States Senate. Look me over, if you are likely to see me help out and vote. Give me a look though, okay? That is all I have really got to say here.”

The mistake made the “Breakdown” host Shaun King feel sorry for the candidate and suggest it was time to announce his retirement.

“This is so sad,” he commented on the video. “I honestly wish he would have retired and not subjected himself to the rigors of this campaign.”

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