- Michael D'Antonio: Roger Stone has undoubtedly influenced President Trump's decision to fire James Comey
- As an old friend and political adviser, Stone has taught Trump be ruthless -- particularly when protecting himself from attack
- Therefore Comey, who was leading the investigation into Trump campaign ties to Russia, had to be taken out, writes D'Antonio
Michael D'Antonio is the author of the book "Never Enough: Donald Trump and the Pursuit of Success" (St. Martin's Press). The opinions expressed in this commentary are his.
(CNN) Though many individuals likely contributed to the President's decision to fire FBI Director James Comey, one notable one may have been Roger Stone, a 64-year-old close friend of Donald Trump and central figure in the FBI investigation into Trump campaign ties to Russia.