Americans are increasingly concerned about Donald Trump’s age and fitness for office | YouGov

The Stanford -Arizona State-Yale Election Panel (SAY24), conducted by YouGov , interviews the same group of respondents every four weeks , allowing us to track changes over time in panelists’ thoughts about the 2024 election.

Between February and October 2024 , the share of Americans saying that Trump is too old to be president rose to 44% from 35% , while the share saying he is not too old dropped to 46% from 53% .

While concerns about Trump ’s age are on the rise, they are still well below the level of concern about Biden 's age when the president was the presumptive Democratic presidential nominee.

Americans of all parties more likely to say Harris ’ health and age would have no effect than to say there would be a small or significant effect.

Americans who have seen Harris speak in the last month are more likely than those who have not seen her speak.

Americans see Harris as more transparent than Trump about health than both candidates.

The survey was fielded every 4 weeks between February 21 and October 22, 2024 for the SAY24 project for Stanford , Arizona State , and Yale Universities .

79% of Democrats say it is fair to question a candidate's health, while 69% of Republicans say the same.

The poll was conducted just after Democratic nominee Hillary Clinton contracted pneumonia.

In 2016 , the partisan divide on this question was flipped: 87% of.