Robert F. Kennedy Jr., an anti-vaccine activist and environmental lawyer who is running for the Democratic nomination for president, has a higher favorability rating than many of the other 2024 pre…

"President Biden and former President Trump each had the second-highest percentage of respondents viewing them favorably, with 44 percent saying so. But Biden had a minus-9 net favorability rating, while Trump had a minus-10 net favorability rating. "