Tribe has stirred controversy due to his promotion of claims about President Trump's fitness for office. Dartmouth political scientist Brendan Nyhan harshly criticized Tribe, saying that he "has become an important vector of misinformation and conspiracy theories on Twitter." According to McKay Coppins of" The Atlantic", Tribe has been "an especially active booster" of the Palmer Report, "a liberal blog known for peddling conspiracy theories". Tribe removed the posted tweets following the Palmer Report and contests the accuracy of the story of controversy.