In 2008, Trevor started FitzGibbon Media to provide domestic and global public relations strategy around cutting edge political, human rights, environmental, and nuclear proliferation issues, as well as for progressive campaigns. Prior to that he served as a Communications Director in New Mexico for the Barack Obama Campaign in the Democratic Presidential Primary, and for seven years, he was the Sr. Vice President of Media Relation for Fenton Communications - helping to oversee media relations strategy for the One Campaign, MoveOn.org, and much of the progressive movement. Trevor has placed clients in front of a wide range of audiences on shows including 60 Minutes, Meet the Press, Nightline, The Colbert Report, The Situation Room, The Rachel Maddow Show, and Countdown with Keith Olbermann, and on networks such as Al Jazeera, BBC, CNN International, NPR, FOX, Phoenix TV (China), and NHK (Japan).

Whether it's handling the political media relations for R.E.M., Pearl Jam, and the Vote for Change Tour, orchestrating the international media strategy to eliminate nuclear weapons for Global Zero, or helping The Center for Human Rights and Global Justice (CHRGJ) at NYU School of Law defend detainees tortured at the CIA's "Black Sites," FitzGibbon Media has effectively injected clients into the international news cycle time and time again.

Trevor created a campaign and recruited some of the biggest musicians in the world to speak out against torture and support President Obama and General Colin Powell's effort to close Guantanamo Bay Prison. The musicians - including Tom Morello of Rage Against the Machine, Trent Reznor, Pearl Jam, R.E.M., Rosanne Cash, Billy Bragg, and The Roots - not only endorsed the National Campaign to Close Guantanamo, but, in an unprecedented legal move, submitted a Freedom of Information Act request to the CIA, FBI, and other government agencies to find out whose music was used to torture which detainees at Guantanamo. The PR effort garnered international media coverage, including stories in The New York Times and The Washington Post, on BBC and Al Jazeera, and in The Guardian.

Trevor's media relations surrounding MoveOn's "Child Pay" TV ad resulted in "the ad that has achieved the most air time with the least dollars expended of any ad in the history of the republic," according to Kathleen Hall Jamieson, Dean of the Annenberg School for Communications at the University of Pennsylvania.

From 1992 until 2002, Trevor was a grassroots environmental organizer. Fenton Communications hired Trevor after 9/11 to provide the lead media relations against the Bush Administration and its rush to war.