During a speech on Thursday, President Biden called his vice president, Kamala Harris, "President Harris". It happened while Biden was speaking about the U.S. nearing the milestone of 100 million COVID-19 vaccine doses being administered. Biden said, "Now when President Harris and I took a virtual tour of a vaccination center in Arizona..." Harris joined Biden for his remarks at the White House, but her reaction to the slip was not recorded in the official video feed.