This file contains links to the data behind FiveThirtyEight's 'Senate forecasts' https://projects.fivethirtyeight.com/2018-midterm-election-forecast/senate/

`senate_national_forecast`

A dataframe with 450 rows representing national-level results of the classic, lite, and deluxe Senate forecasts since Aug. 1, 2018 and 11 variables

- forecastdate
date of the forecast

- party
the party of the forecast

- model
the model of the forecast

- win_probability
the probability of the corresponding party winning

- mean_seats
the mean of the number of seats

- median_seats
the median number of seats

- p10_seats
the top 10 percentile of number of seats

- p90_seats
the top 90 percentile of number of seats

- margin
unknown

- p10_margin
the margin of p10_seats

- p90_margin
the margin of p90_seats

FiveThirtyEight’s House, Senate And Governor Models Methodology: https://fivethirtyeight.com/methodology/how-fivethirtyeights-house-and-senate-models-work/

The original dataset included a meaningless column called "state", and all variables under this column was "US". So this column was removed.