Lev Radin/AP This week in an Albany , New York courtroom, Robert F. Kennedy Jr. is fighting a legal challenge that has the potential to sink much of his independent presidential campaign.

The dispute is over where he calls home. In a lawsuit that was engineered by Clear Choice PAC, a super PAC formed earlier this year by political allies of President Joseph Biden to combat independent candidates or third-party efforts that could threaten the Democratic ticket, several New York State voters challenged Kennedy’s position on the state’s presidential ballot, contending that he falsely stated his residence on the nominating petitions he filed to obtain ballot access. They argue that this renders his petitions invalid and that he ought to be tossed from the ballot.

(The original complaint also challenged signatures on Kennedy’s petitions, but that matter has been put to the side.) Being kicked off the Empire State’s ballot would be embarrassing for Kennedy but not likely to affect the overall presidential race. Vice President Kamala Harris is expected to win the heavily Democratic state.

But strategists for Clear Choice PAC say they have identified about 18 states where Kennedy is on the ballot and could be vulnerable to similar challenges if he loses the New York case. This collection of states includes most of the swing states, where Kennedy could impact the ultimate outcome by drawing votes from Harris or GOP nominee Donald Trump. (In some states, if Kennedy loses this c.