Sanders needed another huge polling miss in Michigan like the one in 2016, but lightning did not strike twice. Instead, Biden looks to have won the state fairly comfortably while also picking up easy wins in Mississippi and Missouri. These results, coupled with Biden's big lead in the latest national polls, suggest that he could very well be uncatchable in the Democratic primary race. The calendar gets even harder for Sanders next week, and it will be interesting to see just how much longer the race remains ostensibly competitive. I'm not betting against Sanders to drop out soon, but it does seem like we're getting close to the conclusion of the 2020 Democratic nomination contest.