21CEE / FORECAST REPORTING
What changed.
What the record shows.
Dated model estimates, paired with the candidates and the evidence behind each comparison. These are forecasts, not poll measurements, win probabilities or official election results.
Follow a race.
Reading the released forecast…
Issued forecast history.
How assigned chamber totals changed across dated releases. These charts describe model estimates. Gaps and changes in method are disclosed; they do not establish forecasting accuracy.