Just read the link to the poll. I know they asked too many questions about Kavanaugh. One of the questions asked how they would vote if his appointment led reversal of Roe. PPP turned this into apush poll. I do not put a lot of stock in push polls. I do not know the order of questions. The name of the poll sponsor is also suspect. It also became essentially an internal poll.
PPP always asks the base question first, so its unlikely the future questions made any impact on voter preferences. While they do lean D with their questioning, their baselines are very reliable.