CNN President Jeff Zucker resigns over consensual relationship with key lieutenant.

 "I acknowledged the relationship evolved in recent years. I was required to disclose it when it began but I didn't. I was wrong. As a result, I am resigning today." - Jeff Zucker

Zucker's lover is Allison Gollust, the executive vice president of CNN.

Worldwide president Jeff Zucker, the influential news executive who reshaped the iconic network, announced Wednesday morning that he has resigned from his position effective immediately.

Zucker's stunning announcement came less than two months after he fired prime time anchor Chris Cuomo for improperly advising his brother, then-New York Gov. Andrew Cuomo, about how to address sexual misconduct allegations.

"As part of the investigation into Chris Cuomo's tenure at CNN, I was asked about a consensual relationship with my closest colleague, someone I have worked with for more than 20 years," Zucker told employees in a memo. "I acknowledged the relationship evolved in recent years. I was required to disclose it when it began but I didn't. I was wrong. As a result, I am resigning today."

Zucker did not name his colleague, but the relationship is with Allison Gollust, his key lieutenant for the last two decades. Gollust is remaining at CNN.

Zucker and Gollust began working together at NBC in 1998. They rose through the ranks at the network together, and when Zucker joined CNN, Gollust was among his first hires. Just before coming to CNN Gollust had worked briefly as communications director for Andrew Cuomo. She is currently executive vice president and chief marketing officer at CNN.