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The majority of Tennesseans approve of using the electric chair for executions, according to a new poll from Vanderbilt University.

Fifty-six percent of the state's registered voters say they support a Tennessee law passed this year that would allow electrocutions if lethal injection drugs are not available. The state has not executed a death row inmate since 2009, in part because of difficulty in obtaining lethal injection drugs.

Other states have gone ahead with lethal injections, despite questions about how the drugs were obtained, how they were administered and their effectiveness. That has prompted a wave of court cases challenging lethal injection procedures.

Tennessee has scheduled executions by lethal injection for at least 10 death row inmates.

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