Dems going to go ahead with filibuster, though they know that they will fail
They are doing this despite: "At least 65 Senators are expected to vote to end debate and move on to Tuesday's confirmation vote; that's five more votes than the minimum needed for cloture."
It seems pretty clear that the Democratic Senators are just trying to make their base happy. The cost though is that anybody else will view the Democrats as just being too extreme. There are plenty of news stories about how this is upsetting some Democratic Senators.