A volunteer hands out a poster as Vermont independent Sen. Bernie Sanders was set to address a “Medicare for All” rally in downtown Columbia, S.C. on Saturday, Oct. 20, 2018. Sanders hasn’t announced intentions for another bid in 2020. But in the run-up to the Nov. 6 election, he’s visiting more than half a dozen states to stump with congressional candidates. (AP Photo/Meg Kinnard).