I went back and looked out of curiosity. Here is how bad their final polling was:

Pennsylvania - Biden + 9
Wisconsin - Biden + 13
Michigan - Biden + 7

Actual results for Biden:

Pennsylvania - +1.17
Wisconsin - +0.63
Michigan - +2.78


They cannot be taken seriously. They had him polling at + 9 or better all of October. Polls tend to tighten up their purposefully biased methodologies at the end, yet they still had Biden +8 in November.