President Joe Biden is three years and seven months older than former President Donald Trump. In their debate Thursday night on CNN, the gap between the 81-year-old incumbent and his 78-year-old challenger seemed much larger. Biden, hoarse and displaying little vocal range, was often unable to express his differences with Trump with clarity. At one point, after Biden had trailed off as he defended his record on border security, Trump said: “I really don’t know what he said at the end of that sentence. I don’t think he knows what he said, either.” (Photo Credit: Tristen Rouse/CNN)
