Venezuela's socialist system faces electoral test as voters hit the polls

A mural of Venezuelan's late President Hugo Chavez decorates a wall outside a polling station where voters wait to enter during congressional elections in Caracas, Venezuela, Sunday, Dec. 6, 2015. The system built by Chavez faces its gravest electoral test as voters cast ballots in what seems to have become a tightening race for control of the national legislature. (AP Photo/Ariana Cubillos)

Voters wait in line at a polling station during congressional elections in Caracas, Venezuela, Sunday, Dec. 6, 2015. (AP Photo/Ariana Cubillos)

(Franz von Bergen/ Fox News Latino)

A kiosk from the Venezuelan government's party close to Leonardo Infante polling station. (Franz von Bergen/ Fox News Latino)

Voters look for their national identification numbers outside a polling station before casting their ballots for congressional elections in Caracas, Venezuela, Sunday, Dec. 6, 2015. (AP Photo/Ariana Cubillos)

El Nacional journalist Alejandro Hernandez shows the wound he received after getting hit by a stone during Venezuela's elections. (Franz von Bergen/ Fox News Latino)

Inside the polling station Leonardo Infante in Petare, Venezuela. (Franz von Bergen/ Fox News Latino)