The plan was later complicated in late 1985 , when Lieutenant Colonel Oliver North of the National Security Council diverted Removing a portion of the proceeds from the Iranian weapon sales to fund Supply the Contras , a group of anti-Sandinista rebels , in their insurgency against the socialist government of Nicaragua .

A second election Choosing in 1990 resulted in Causation the election Choosing of a majority of anti-Sandinista parties and the FSLN handing Giving over power .