Early polling of potential 2020 Democratic presidential candidates reveals the trio of initial front-runners share a common trait: They’re all white men.

Former Vice President Joe Biden, 76, and Sen. Bernie Sanders, 77, are early favorites to become the party’s nominee in a handful of recent polls — driven in part by name recognition. In addition, Rep. Beto O’Rourke’s White House prospects have skyrocketed since last month losing his Texas Senate race against Republican incumbent Sen. Ted Cruz.