In the Democratic race, the polls had a 1.8 percentage point bias toward Clinton (and against Sanders) overall. However, it varied significantly based on the demographic makeup of the state, with Clinton outperforming her polls in diverse states and Sanders beating his in whiter ones. Specifically, in states where at least 25 percent of the population is black or Hispanic, the polls had a pro-Sanders, anti-Clinton bias of 5.7 percentage points. But they had an 8.2 percentage point bias toward Clinton, and against Sanders, in states where less than 25 percent of the population is black or Hispanic.