Gollust serves as chief spokesperson for the news brand and leads marketing, publicity and public relations teams in New York, Washington, D.C., Atlanta and Los Angeles. Her role as CMO gives her responsibility for brand strategy and marketing efforts for all of the brands within the CNN Worldwide portfolio. Gollust oversees CNN's creative marketing, events, on-air promotions, off-channel and digital marketing efforts as well.

Prior to joining CNN, Gollust served as communications director for New York State Governor Andrew M. Cuomo. Prior to that, she was executive vice president of corporate communications for NBC Universal, where she oversaw all aspects of the company's global communications efforts. She started at NBC in the Corporate Communications group in 1996 and was named senior publicist for Today in 1997. With successive promotions, Gollust added responsibility for communications efforts supporting NBC News, MSNBC, CNBC and the Weather Channel, and signature programs including NBC Nightly News, Dateline and Meet the Press. She began her career as a news anchor, reporter and producer in Denver. Gollust resides in New York City with her two daughters.