Joe Biden has made it abundantly obvious that he intends to run for a second term as president in the upcoming election, despite the fact that many in his own party wish he wouldn’t undertake the monumental challenge.

As his mental and physical aptitude for the demanding job appears to be manifest, in part due to his age, Biden has, until now, had no apparent competition for the top position. This may have contributed to his overconfidence in running again. This is no longer the case, as he now faces a competent Democratic opponent for the position of chief of the free world.

The Associated Press reported the shocking news, revealing that Robert F. Kennedy Jr. is likely to be Biden’s most formidable opponent:

Democrat Robert F. Kennedy Jr., an anti-vaccine activist and scion of one of the country’s most famous political families, is running for president.

Kennedy filed a statement of candidacy Wednesday with the Federal Election Commission.

The 69-year-old’s campaign to challenge incumbent President Joe Biden for the Democratic nomination is a long shot. Self-help author Marianne Williamson is also running in the Democratic race.

Kennedy, a nephew of President John F. Kennedy and the son of his slain brother Robert F. Kennedy, was once a bestselling author and environmental lawyer who worked on issues such as clean water.

But more than 15 years ago, he became fixated on a belief that vaccines are not safe. He emerged as one of the leading voices in the anti-vaccine movement, and his work has been described by public health experts and even members of his own family as misleading and dangerous.

BREAKING: @RobertKennedyJr has filed to run in the Democratic primary against Joe Biden as the leading anti vax, anti Fauci, anti CDC candidate. pic.twitter.com/7BEOUAcFCz

— Grace Chong 🇺🇸 (@gc22gc) April 5, 2023