Among Democrats ages 18 to 34, 54 percent said they were somewhat or much less likely to support a candidate over the age of 70.

Among 35-to-54-year-old Democrats, 58 percent said they were somewhat or much less likely to support a candidate who is over the age of 70, while 59 percent of Democrats aged 55 and older said the same…

Sue Carrera, 56, a childcare worker from Inglewood, California, said she worried Biden and Sanders were too old to deal with the demands of being president.

“I mean, they are in their 80s at the end of their first term. The prospect of mental issues is a concern for me,” Carrera said over the weekend at a candidate forum in Las Vegas with union workers.