Whether the standard for dismissing a juror based on views on the merits of the case is a 'demonstrable reality', 'any possibility', 'any reasonable possibility', or 'any substantial possibility'

Dismissal of a juror based on a purported unw illingness or inability to follow the law is impermissible when the impetus for the dismissal stems from the juror’s views on t he merits of the case. Is the standard for dismissal a “demonstrable reality” the juror’s views on t he merits are the impetus, “any possi bility” the juror’s views on t he merits are the impetus, onl y “any reasonab le possi bility” the juror’s views on t he merits are the impetus, or only “any substantial possi bility” the juror’s views on t he merits are the impetus? i