Four at minimum. Roberts definitely isn't willing to allow this, and Gorsuch might well be willing to side with Roberts and the liberal wing rather than his fellow conservatives here (but I'm less confident about him).
Why Gorsuch? He's hyper-textualist and possibly less concerned with real-world consequences even than Thomas. Just because his approach is unusually philosophically interesting, internally consistent, and prone to producing non-"movement conservative" outcomes doesn't mean he's at all moderate or institutionalist.
Poll
