538 model & poll tracker thread

[Admiral Stockdale]

I am not sure how much the 538 model starts to remove a poll's "weight" the further back it is on the calendar.  Are they completely tossing a June or July poll if they have an August poll or does it just drop from a weighting perspective (e.g., 20% to 5%)?

Then there's the impact of the polster's rating and THAT weighting...  like a B/C polster gets reduced by 50%, but an A+ polster is 175%.

[Admiral Stockdale]

https://twitter.com/gelliottmorris/status/1298797791523868673?s=20

Isn't the fact that the model was "wrong" in 2016 mean that they adjusted it in some way - maybe it was too "confident" based on early polls and now it is more conservative?