He is a former Managing Director of The Israel Project and political blogger. He also worked for Laurent Gbagbo during the 2010 Election in the Ivory Coast, working to stage Gbagbo's attempt to annul the vote and to promote Gbagbo's efforts in the US and other Western countries.
He came to international attention when he uncovered that Human Rights Watch military analyst Marc Garlasco was an "avid collector" of Nazi memorabilia and published the information on his blog Mere Rhetoric.
He also drew controversy for criticism of former American President Jimmy Carter's position on the 2006 Israel-Hezbollah conflict in Lebanon and his defense of Ann Coulter against charges of anti-Semitism.
- "Sen. Cruz Announces Staff Updates". Ted Cruz Senator for Texas. Retrieved 8 April 2018.
- "CNN: TIP Senior Advisor Omri Ceren discusses American Jewry's view of Israel". Retrieved 18 February 2016.
- https://tyt.com/stories/4vZLCHuQrYE4uKagy0oyMA/16UVuZhEv2mcE26koqUm2w. Missing or empty
- Rights Group Assailed for Analyst's Nazi Collection, New York Times, John Schwartz, Sept. 14, 2009, 
- 'HRW expert collects Nazi memorabilia' Herb Keinon, Jerusalem Post, Sept. 9, 2009, 
- Human Rights Watch earns its pay, Omri Ceren, Jerusalem Post, Aug. 25, 2009 
- Mere Rhetoric facepage
- Pitt senior Kinnan wins Marshall Scholarship University of Pittsburgh The Pitt News - Jan 9, 2003
- Carter Pleas for Peace, Bloggers Step Up Attack, The former president issues an op-ed plea to "Stop the Band-Aid Treatment," which bloggers receive with characteristic restraint and maturity, Edward B. Colby, Aug. 2, 2006, Columbia Journalism Review 
- Coulter Comes To USC, Criticizes Liberal Politics, Oct 25, 2007, CBS News, Politica 
- Over-clamor over Coulter's comments, October 18, 2007, Jewish Journal of Los Angeles 
- Mere rhetoric blog 
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