 According to Olivia Nuzzi, Joe Biden had good days and bad days even back on the campaign trail in 2020. Quoting her again, back then there were days when Biden appeared sharper than others. I knew it was a good day when he saw me and he winked. On such occasions, he joked and prayed and cried with voters. He stayed to take a photo with every supporter. He might even entertain a question or two from the press.