Since most people aren’t following the case, the Economist/YouGov Poll described the ruling briefly in the question about attention to the D.C. Court’s decision. Immediately afterwards, everyone was asked about the decision itself. There was more opposition than support for the ruling, with more being undecided than when asked the direct question about subsidies. Opinion was split, as has been the case on nearly every question about the law, largely according to a person’s partisan identification.
However, the group that has been following the decision (which more Republicans than Democrats are doing) shows a much closer division. 46% of those following the story support the D.C. Court’s ruling, 47% oppose it.