Guatemala's first Pentecostal president, Efrain Rios Montt, killed tens of thousands of Mayans (and enjoyed the support of American Pentecostals such as Pat Robertson).

ECONOMIST: Pentecostals

Born in Huehuetenango in 1926, Efrain Rios Montt joined the army and was a young officer when President Jacobo Arbenz Guzman was deposed in a CIA-backed military coup in 1954.

BBC: Profile: Guatemala's Efrain Rios Montt

The party's chief backer is the now-retired General Efrain Rios Montt, ruler of the country in the early 1980s a period when thousands of left-wingers, real or suspected, including Catholic priests, were murdered.

ECONOMIST: Guatemala