- Media Analyst and Advocacy Director for tax-exempt leftwing "media watchdog" organization FAIR
- Co-host and producer of FAIR's syndicated radio show CounterSpin
- Co-author of book The Oh Really? Factor: Unspinning Fox News Channel's Bill O'Reilly
- Former member of the radical Paper Tiger Television Collective
Hart is producer and a co-host (along with Steve Rendall and Janine Jackson) of FAIR’s weekly syndicated radio show CounterSpin, which according to FAIR’s web site is “heard on more than 125 noncommercial stations across the United States and Canada.” These include some stations affiliated with National Public Radio (NPR) or owned by radical Pacifica Radio.
In 1997 Hart graduated from Rutgers University, where he “presented research as an undergraduate to the AEJMC (Association for Education in Journalism & Mass Communications).
Hart has written dozens of articles published in FAIR’s magazine Extra! The first of these, co-authored with Steve Rendall, appeared in July 1998.
Hart is co-author (with “Fairness & Accuracy in Reporting”) of the book The Oh Really? Factor: Unspinning Fox News Channel’s Bill O’Reilly (Seven Stories Press, 2003).
“There’s a structural problem in media itself,” Hart told the left-wing Working for Change webzine BuzzFlash in a November 2003 interview, “….that goes a long way in explaining why progressives don’t have a reliable perch in the mainstream media….an ad executive….explained to Advertising Age magazine…that the problem with being associated as liberal is that they wouldn’t be going in a direction that advertisers are really interested in….[and] when the message is something that advertisers are not interested in…There will also always be political pressure from owners, publishers – people with real power in the media – who tend to be more conservative politically and probably don’t want to promote a genuine progressive point of view.. That’s something that FAIR has documented over 16-some-odd years.”