Nicaragua's first couple, President Daniel Ortega and his wife Vice President Rosario Murillo, are both in their 70s but they show no signs of being willing to let go of power.
Another presidential candidate was arrested in Nicaragua on Saturday, police said -- the seventh detained by Daniel Ortega's government in the lead-up to elections...
He was elected president in 1984 and ruled until 1990 when he was beaten by Chamorro, then returned to power in 2007. He has won two successive reelections.
In raids that began on June 2, security and paramilitary forces have arrested five opposition presidential challengers as well as journalists, businessmen and a banker.
All four are critics of Nicaragua's authoritarian President Daniel Ortega and have been detained in recent days in an expanding crackdown on dissenting voices.