A video showed the moment U.S. President Joe Biden left the interview site unannounced during a live broadcast. The president was being interviewed by MSNBC, and at the end of the conversation, the host thanked Biden for his visit. He then stood up from his chair, which embarrassed the host, shook her hand, and left the site, even though the live broadcast was still ongoing. At 80 years old, Biden is the oldest president in U.S. history. Critics continuously accuse him of being mentally unfit due to his frequent slips and mistakes.