Mark Corallo is an American political communications and public relations professional, who is the co-founder and co-principal of Corallo Comstock. Corallo also formed Corallo Media Strategies, a public relations firm. Corallo is a Washington communications veteran who has worked on Capitol Hill, in the executive branch, for campaigns, and with grass roots organizations.
In 2007, Corallo signed on as spokesman for possible Republican presidential candidate Fred Thompson. He has also gained prominence by publicly calling for the resignation of Attorney General Alberto Gonzales.
He is currently a senior adviser with The Ashcroft Group.
Corallo formed his newest firm with , who served as his predecessor as Public Affairs Director at the Department of Justice until 2003, and prior to that, as Republican National Committee opposition research director. Corallo decided to convert his previous one-man shop into a joint operation after conversations with the Hearst Corporation, one of his clients, about hiring additional representation for their matter. Corallo recommended Comstock, who, like Corallo, had assisted the defense team of Scooter Libby.
Hearst has hired Corallo and Comstock to support Heart's attempts to quash a subpoena to compel testimony by two San Francisco Chronicle journalists who broke the story of the BALCO steroids investigation.
Corallo was chief spokesman for U.S. Attorney General John Ashcroft from 2002–2005, as the Public Affairs Director for the Department of Justice. The American Civil Liberties Union (ACLU) has compiled numerous examples of statements Corallo made during that period which the ACLU believes misrepresent the department's understanding of the USA Patriot Act and which were designed to mislead the press about the scope of Justice Department actions.