There's an overwhelming number of Democrats who want to take on Donald Trump in 2020, but they can't do it without your vote. The Stanford Sphere is here to rank them.
Note: It was my decision to credit this piece to the Sphere Editorial Board out of respect for the dozen-plus co-writers who helped make it possible. I took a lead role in the creation of this piece, from pitching it to assigning and editing the contributions of my co-writers. I wrote the introduction and the blurbs for Joe Biden and Kirsten Gillibrand.