[1] Fein is a principal in a government affairs and public relations firm, The Lichfield Group, in Washington, D.C.[2] He is also a resident scholar at the Turkish Coalition of America (TCA).

During that period, he wrote a 30-page critique of Times v. Sullivan, the Supreme Court ruling that freed American media from much of its liability under libel law in the United States.

Fein also harshly criticized the anti-terror policies of the Bush White House, including wiretapping and detention of terror suspects.

In April 2009, Fein criticized President Barack Obama for declining to prosecute Bush administration officials for composing CIA memos justifying torture during interrogations.

[17] Fein argued that subsequent revelations that the Court was misled, changes in attitudes, and notably the Congress passing the Civil Liberties Act of 1988 in which it apologized for the nation and made reparations for internment of Japanese Americans, history has in effect overturned the Korematsu decision.

"[20] Both made arguments in line with Richard Primus' notion of "Anti-Canon" cases, those which have come to be seen as exemplars of faulty legal reasoning and / or decision making,[21] with Feldman comparing Korematsu to Plessy v. Ferguson[20] and Fein stating that it has "joined Dred Scott as an odious and discredited artifact of popular bigotry.

[29] Fein has penned several articles on the topic, including in The Washington Times and The Huffington Post[30] where he states no racial, ethnic or religious motivation for the Armenian genocide[3] ever existed.

[32] Together with David Saltzman, he represented alleged Armenian genocide denier Guenter Lewy through the Turkish American Legal Defense Fund (TALDF) in an action against the Southern Poverty Law Center.

[34] Fein was also one of the attorneys for Rep. Jean Schmidt, another alleged Armenian genocide denier, in action against David Krikorian[35] and of the TCA against University of Minnesota.

The articles include: contempt of Congress, violation of the Emoluments Clause, abuse of presidential powers and of the public trust, soliciting a foreign contribution and bribery, and suppression of free speech.

[38][39] American Empire: Before the Fall, the most recent of Fein's published works, condemns what it calls "the aggressive foreign policy of the United States" for being devoid of concrete objectives, and as such, doomed to war in perpetuity.

Ron Paul (via Campaign for Liberty), Ralph Nader,[41] Glenn Greenwald,[42] Judge Andrew Napolitano,[43] US Representative Walter B. Jones Jr., are prominent political figures who so far have publicly declared their concurrence with Fein's analysis.