While Robert F. Kennedy Jr.’s public health views are being scrutinized after Donald Trump tapped him to lead the Department of Health and Human Services, the Supreme Court just rejected an appeal he pressed on the subject.

But that’s all the more reason it looked for a while like there could be a bumper crop of non-major party presidential candidates. There was the No Labels movement, which for a while was making elaborate claims of viability (or at least significant visibility) for a bipartisan ticket in states across the country.