Packing potatoes at his vegetable stand on a sun-baked street in Caracas's hillside Catia slum, Jesus Jimenez fondly recounts voting for late president Hugo Chavez. Like millions in Venezuela's poor "barrios," the chatty father of 14 worshipped the larger-than-life Chavez and benefited from his welfare programs, especially Cuban-staffed free health centers and substantial pension rises. So after Chavez's death last year, Jimenez naturally voted for the leader's hand-picked protege Nicolas Maduro, a former union activist and bus driver who vowed to continue the idiosyncratic brand of socialism known as "Chavismo". Now, though, he struggles to make ends meet as inflation...