Elliot Spitzer under prostitution investigation

(CNN) -- New York Gov. Eliot Spitzer is under investigation for allegedly meeting with a prostitute in a Washington hotel, two sources with knowledge of the investigation tell CNN.

Gov. Eliot Spitzer, with his wife by his side, apologizes to his family and to the public.

One of the sources said Spitzer is identified in a criminal complaint as "Client-9," and that Spitzer's alleged involvement was caught on a federal wiretap.