Kennedy apologises after video of him speaking to Trump leaks online

Independent presidential candidate Robert F Kennedy Jr (Jose Luis Magana/AP)

Robert F Kennedy Jr has apologised after a video was posted online showing part of a private phone call between the independent presidential candidate and Republican former president Donald Trump.

The video shows Mr Kennedy listening on a speakerphone as Mr Trump shares disproven claims about childhood vaccines, an issue that has helped Mr Kennedy amass a loyal following among people who reject the scientific consensus that the benefits of vaccines far outweigh the risk of rare complications.