From Quinnipiac:

As former President Donald Trump seeks to return to the Oval Office, 31 percent of registered voters have a favorable opinion of him, while 59 percent have an unfavorable opinion of him, the lowest favorability rating he’s received among registered voters since July 2015, according to a Quinnipiac (KWIN-uh-pea-ack) University national poll released today.
Among Republican voters, 70 percent have a favorable opinion of Trump, while 20 percent have an unfavorable opinion of him. This is the lowest favorability rating among Republican voters in a Quinnipiac University poll since March 2016.
Among independent voters, 25 percent have a favorable opinion of Trump, while 62 percent have an unfavorable opinion of him. This is his lowest favorability rating among independent voters since Quinnipiac University first asked this question of registered voters in May 2015.
Seven in 10 registered voters (70 percent) say they would not like to see Donald Trump as the 2024 Republican nominee for president, while 25 percent say they would like to see him as the nominee. Among Republican voters, 56 percent say they would like to see Trump as the 2024 Republican nominee for president, while 38 percent say they would not like to see him as the nominee. The Quinnipiac University Poll does not have a trend for this question.
Slightly more than half of registered voters (51 percent) say Trump should be disqualified from running for president again after he called to terminate the Constitution so that he can be reinstated as president, while 40 percent say he should not be disqualified.