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Most firms don't switch to LV until labor day. LV screens can increase accuracy on head-to-head matchups close to election day, but can also introduce a lot of bias; "house effects" are typically the result of a particular LV criteria set vs another, whereas A and RV groups don't suffer bad assumptions about the L-ness of the V.
I just read this Wikipedia article. It says Trump won with a 304 to 227 for electoral votes. That's 304 + 227 = 531 votes. But the total number should be 538. Where did the 7 votes go?
538 did an article about the urban-rural divide. It said that in 2016, the correlation between urbanization and Dem voting was 0.69 in 2016 and 0.55 in 2012. (There was one big exception: Vermont.) What was the correlation between the preliminary results and the urbanization index in the 2020 presidential election?
I was looking 538's historical approval ratings and I noticed that on the last day of a two-term president's last term, the approval rating was about twice the popular vote margin nationwide. This result was consistent, going all the way back to Reagan's 1984 reelection.
538 uses a t-distribution to account for "black swan" events: things that, although they are unlikely, would have a big impact on the polls. This means that 538 assigns a small probability to some very unlikely outcomes (Trump wins California, or Biden wins Utah) The Economist model doesn't.
There is no additional tiebreaker. While 538 such candidates is impossible without several changes in the rules (even in Maine and Nebraska, two statewide electors are allocated together), a smaller number of ties like ten is possible. I suppose that you could have a bunch of faithless electors. But some states require that their electors vote ...
Moreover postal votes trended blue, again 538 noted: Democrats are much likelier than Republicans to say they will vote by mail — which makes sense given that Democrats also tend to be more supportive of mail voting. (By contrast, the Republican standard bearer, President Trump, has repeatedly and inaccurately assailed mail voting as ripe for ...
538.com published an article two weeks ago when their election forecast showed Georgia as being ever so slightly blue. In their case, it seemed based mainly on a poll by Quinnipiac University that saw Biden with a 7-point lead in the state which shifted the weighted polling average that forms the basis of 538’s model blue. At the time, 538 ...
This was actually one of the reasons that 538 originally started combining multiple polls into weighted aggregates: to increase the overall reliability. The fact that even 538 seems to no longer be doing their aggregates for Senate races, and is now even burying the margin of error/quality information 3 to 5 clicks deep is sad indeed.
Since around the start of August, President Biden's approval began to tank. According to 538, Biden's approval is currently at 43.8%. They recently wrote an article about how his approval is dropping among almost every single demographic, including Democrats.