After leaving the Democratic primary to run as an independent, Kennedy built an unusually strong base of support for someone running without the backing of a major party. It was unclear exactly where his support was coming from, which worried Republicans and Democrats alike.

But since President Joe Biden ended his re-election campaign and Democrats coalesced around Vice President Harris as their nominee, Kennedy’s rise has been stunted. It looks increasingly unlikely that he will be able to make the debate stage when Trump and Harris face off next month, a moment Kennedy counted on for momentum and legitimacy. His campaign finances have also been strained.

The news comes a little over a week since a New York judge ruled that Kennedy should not appear on the ballot in the state because he listed a “sham” address on nominating petitions. Kennedy has appealed, but has faced several similar challenges around the country.

On Wednesday, he was in a courtroom in the suburbs of New York City waiting to testify in response to another ballot suit in the state, this one backed by the Democratic National Committee, that challenges the signatures collected by his campaign.

He’s also facing a likely legal challenge in Arizona, where last week he submitted signatures that may have been collected by a super PAC that supports him, which Kennedy’s critics say is illegal coordination between a candidate and an independent political group.