News lead: A majority of respondents in late June rejected the possibility of a rematch between Biden and Trump in the next presidential election, but the survey found that Trump is on a stronger footing with his base. Details: Seven in 10 respondents said Biden should not seek a second term.

45% said Biden is a bad president while 30% said he is too great. A quarter of people said it was time for a change.

Between the lines: Asked if Biden is “mentally fit to serve as President of the United States or have doubts about his fitness for office,” 60% of respondents said they have doubts about Biden’s fitness, including nine in 10 Republican respondents and more than a quarter of Democrats polled.

 In a possible Democratic primary, 30% of Democrats polled said they would support Biden.  Vice President Kamala Harris garnered 18 percent and Vermont Sen. Bernie Sanders was at 8 percent.   

By the numbers: Six in 10 voters say they don’t want Trump to run again.

One in three respondents said it would divide America. 36% said he is unstable while 30% said Trump is responsible for the riot on Capitol Hill on January 6, 2021.

Yes, but: The poll shows Trump is the clear favorite among GOP voters in a primary among other potential Republican candidates.

Among Republicans polled, 56 percent said they would vote for Trump in a primary. Florida Gov. Ron DeSantis was the next most popular choice among GOP voters, at 16 percent. Former Vice President Mike Pence garnered 7%.

Methodology: This survey was conducted online from June 28-29 and includes 1,308 registered voters.