The presidential election isn’t the only one we’re keeping tabs on. There’s a good chance — three in four, according to FiveThirtyEight — that Democrats will flip the U.S. Senate blue, which is a big deal. If the Senate stays Republican-controlled, it’s quite possible that much of a potential President Joe Biden’s agenda would be dead on arrival. But if it flips blue, even though it would be a close majority, it could help a Democratic president’s agenda, unclog the backup of unpassed laws in Congress (thanks, Sen. Majority Leader Mitch McConnell), and prevent more extremist judges from being confirmed.
There are several key races in the Senate that will be decided in this election. Ahead are the battleground states we’re watching the most closely. We'll update you as the results are called.