This article gives a good summary of the hurtles that must be overcome to get on all the ballots as an independent Presidential candidate in the USA. There is a reason it rarely happens. In some states, the rules are somewhat different than they are for a 3rd party candidate. One of the primary differences between an independent candidate and a 3rd party candidate is that a 3rd party candidate may start the process already with ballot access in certain states thanks to party activity in previous elections.
The real way RFK Jr. could spoil the 2024 electionRobert F. Kennedy Jr.'s independent bid for president is facing a big hurdle just as it gets off the ground: a grueling, expensive fight to get on the ballot in 50 states and Washington, D.C.
Kennedy said he planned to “spoil” the election for both President Joe Biden and former President Donald Trump — and if polls that show him pulling as much as 14 percent of the general electorate hold, he certainly could be. But it will depend on whether his campaign can successfully navigate the complex ballot access process.
#
ballot_access