Tasha Fairfield is an Associate Professor at the London School of Economics, with a Ph.D in political science from the University of California, Berkeley, and an M.S. in physics from Stanford University. Her publications include Private Wealth and Public Revenue in Latin America (Cambridge, 2015), which won the Donna Lee Van Cott Book Award. Andrew E. Charman is a Lecturer and Researcher in Physics at the University of California, Berkeley, and an expert in Bayesian statistics. Beyond analyzing measurements of antimatter and the foundations of quantum mechanics, he has explored methods for optimal congressional apportionment and statistical mechanical models of gerrymandering. His previous work with Tasha Fairfield received APSA's QMMR Sage Paper Award.