Venezuela in a major crisis: Are sanctions going to help?

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After months of deadly protest over living conditions and human rights abuses, President Nicolas Maduro is accused of running a phony election. Official results from Sunday's voting replaced the previous general assembly with a new one subject to his total control. President Trump has increased individual sanctions against Maduro and other powerful figures — and there's talk of interfering with the vital oil economy. Would that fend off a potential dictatorship — or give Maduro the scapegoat he needs -- possibly leading to civil war?