＊538の上院議員選挙の予想ページ
https://projects.fivethirtyeight.com/2020-election-forecast/senate/
民主党の過半数獲得＝66%、共和党の過半数獲得＝34%

Nate Silver@NateSilver538・3時間
While we've all been focusing on the presidency, the Senate has moved out of
toss-up range and Democrats are now nearly 2:1 favorites. A long way from a
sure thing, but trending poorly for the GOP.