McCarthy has known Rudy Giuliani since at least as early as 1986, when he began his career under Giuliani at the Southern District of New York.[8] In February 2007, McCarthy authored an endorsement for the fledgling candidacy of Rudy Giuliani during the 2008 presidential election campaign in the National Review.[10] McCarthy also served as Giuliani's attorney during the campaign.
https://www.youtube.com/watch?v=8BdVmLmtLRo