Marco Enríquez-Ominami, with about 20% support in recent polls, is remarkably close to Frei (around 26%), and not terribly far from Piñera (roughly 38%). The young candidate’s unexpected popular support is rooted within the ruling coalition: his adoptive father is a prominent Socialist senator (his biological father, a leader of the revolutionary left in the 1970’s, was killed by Pinochet’s political police).