Arthritis has slowed his gait and he suffers from gastrointestinal reflux.
Some still want the disgraced former president to run again while others say the only record he will be able to run on will be a criminal one
At 78, Biden is determined to show he has the energy and will to help turn this nation around.
In a still-crowded field, votes have many varied opinions about the candidates. Same for the man sitting in the White House.
Science says age is only a number, not a proxy for physical and mental fitness. But with three Democrats in their 70s vying to challenge