FiveThirtyEight
Nathaniel Rakich

Our Final Senate Forecast Gave Democrats A 3-In-4 Chance Of Flipping The Chamber

Democrats are favored to take control of the Senate in the 2020 elections, according to the final version of FiveThirtyEight’s Senate forecast. With the forecast set in stone as of early Tuesday morning, Democrats have a 75 in 100 chance of flipping the chamber. Republicans, meanwhile, have a 25 in 100 chance of keeping control — as likely as drawing a spade from a deck of cards.

However, as I wrote in our final forecast overview, “a ton of seats are still competitive; in 80 percent of our model’s simulations, Democrats wind up with anywhere between 48 and 55 seats.” And remember that’s a big range! The exact number of seats here matters, too, because it’s not just about control of the chamber. Winning 50 seats (plus the tie-breaking vice presidential vote) is a very different outcome for Democrats from winning 55 seats, as the size of their majority would affect how likely they are to pass their ambitious agenda. Not to mention, there are still a number of plausible outcomes in which Republicans retain control.


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