Republicans have long been split over vaccination, with many eagerly getting shots while many others refuse. Democrats have their own growing schism, between those who believe Covid precautions should continue to be paramount and those who favor moves toward normalcy.

The key dividing line appears to be ideology. Americans who identify as “very liberal” are much more worried about Covid than Americans who identify as “somewhat liberal” or “liberal.” Increasingly, the very liberal look like outliers on Covid: The merely liberal are sometimes closer to moderates than to the very liberal.

That is a central finding of a poll conducted last week by Morning Consult for this newsletter. The poll is a follow-up to one from January. This time, to go deeper than partisan identification, we asked respondents to choose one of seven labels: very liberal, liberal, slightly liberal, moderate, slightly conservative, conservative or very conservative.