How does anti-vaxxer Robert F. Kennedy Jr. factor into 2024 election?

Robert F. Kennedy Jr. called on the White House to de-escalate tensions with Russia and even suggested the president should meet with Vladimir Putin while speaking in New Hampshire Tuesday night. Kennedy is challenging President Biden for the party’s nomination. He is also an anti-vaccine activist and has been accused of spreading misinformation. James Pindell, a political reporter for the Boston Globe, joined CBS News to talk about Kennedy Jr.’s campaign. Source