Watch the sad moment ailing Biden, 81, walks VERY slowly off Air Force One and struggles to climb

President Joe Biden arrived back in Delaware Wednesday night after testing positive for COVID-19 while on the campaign trail in Las Vegas. The maskless 81-year-old - whose political future is in jeopardy due to age-related concerns - walked very slowly off of Air Force One, pausing multiple times, before putting a mask on inside the black SUV that carted him off to Rehoboth. He also appeared to need some assistance as he slowly nudged himself into the car, before the motorcade pulled away. The past 24 hours have been disastrous for the ailing president with three top Congressional Democrats reportedly telling him he's not going to win and it's time to go. Speaker Emerita Nancy Pelosi (inset) privately told Biden he cannot defeat former President Donald Trump and could sink the Democrats' chances in Congress as well.