New York (AP) — The brother of a powerful leftist senator in Colombia pleaded guilty Tuesday to federal narcotics charges as part of a sting in which he offered to introduce U.S. drug informants to dissident guerrillas who could help smuggle huge quantities of cocaine to New York.

Álvaro Córdoba, dressed in prison garb, entered a plea in Manhattan federal court to a single count of conspiring to send 500 grams (17 ounces) or more of cocaine into the U.S. He will be sentenced to a mandatory five years in prison but could also face more than two decades behind bars under sentencing laws. His plea does not contain any promise to cooperate with law enforcement.