Almost half the country still has no idea what the Supreme Court did in last week’s healthcare ruling—one of the most important cases in the last decade, if not since the New Deal.

The nonpartisan Pew Research Center asked people point-blank what the Court did, and 30 percent of people said they didn’t know, while another 15 percent incorrectly said the law was overturned. That rounds out to about 45 percent at “no clue,” when you think about it:

This data is an antidote to all the political and media commentary, across the spectrum, about the inevitably huge impact the decision will have on public opinion and the November election.

There is a dose of partisanship in the findings. Democrats were more likely to correctly answer that the law was upheld—only 11 percent thought it was rejected—while more Republicans incorrectly held onto the belief that it was rejected (19 percent of Republicans thought the Court overturned the law).

Overall, however, the clear takeaway is that even after the relentless media coverage, political passions and controversial intrigue surrounding the case, much of the population is simply not absorbing facts on the outcome of the case.