On Friday, a longtime friend of Robert F. Kennedy Jr., the independent candidate for president, delivered boxes carrying 110,000 signatures to election officials in Arizona, to secure ballot access in a critical battleground state.A vast majority of those signatures, according to two people closely involved with the campaign’s operations, were not gathered by local volunteers, or even by paid canvassers working for the campaign. Instead, the people said, they came from a super PAC backing Mr. Kennedy that gathered signatures in Arizona months ago but set them aside after their efforts prompted legal challenges.The issue of who collected the signatures...
