Over the past month, there has been movement in the polls for the four likeliest tipping point states, those most likely to tip the Senate towards one party or the other. In these extremely close races, every change could have big consequences. As we get closer to the midterms, Galen Druke zooms in on the Senate races in Georgia, Nevada, Pennsylvania and Wisconsin.
Sophia Lebowitz is a former video producer at FiveThirtyEight. @SophLebo
Galen Druke is FiveThirtyEight’s podcast producer and reporter. @galendruke