Bolivians head to the polls Sunday to vote on a controversial new charter that boosts rights for indigenous people and nationalizes gas reserves.
In an abrupt turn, the Venezuelan president reinstated the program two days after its suspension.
Amid a bid for reelection, Venezuelan President Hugo Chávez's oil subsidy and antipoverty programs may be on the chopping block.
A sharp drop in oil prices is forcing the country to reduce government spending.
Venezuela's Hugo Chávez and Cuba's Raúl Castro signed a series of bilateral accords in Caracas on Saturday in Mr. Castro's first foreign trip since he succeeded his ailing brother Fidel.
Cuba's new president is not as close to Venezuela's Hugo Chávez as Fidel Castro. But Raul and Chávez need each other, now more than ever, say analysts.