This chapter unpacks the vaguely realist concepts used in the FPC’s analyses of the first Trump administration, recognizing them as analytical concepts that are treated as ontologically given. This examination understands the FPC’s appraisal of Trump’s foreign policy—especially through the ontologisation of concepts—as hindered by a presumption that President Trump’s domestic policy moves were articulations of a disruptive, yet coherent foreign policy that was a part of a broader trend of foreign policy sea change. The effects of reproducing concepts as ontological facts, rather than analytical tools, are interrogated in the chapter.