In terms of the two core elements:
anti-elitism: Donald Trump’s 2016 US Presidential election victory on a populist-nationalism platform depended on his carefully crafted persona. Trump cast himself as the “true representative” of the American people fighting the corruption and arrogance of the “progressive” cultural and political elite of the Washington establishment. Trump’s inauguration speech included: “We are transferring power from Washington DC and giving it back to you, the people … The establishment protected itself, but not the citizens of our country.” Since his election, Trump has promoted an explicit agenda to ban Muslim immigration. This is part of a broader nativist movement in the US, elevating latent anti-Islamic attitudes to the level of national conversation. The reduced rhetorical distance between the US administration and conservative right-wing Islamophobic groups has helped normalise and legitimise politically-motivated anti-Muslim content and communications in the media.
anti-pluralism: Trump has used language such as: “The only important thing is the unification of the people – because the other people don’t mean anything.” His claims to represent ”the people” delegitimise all other political competitors and excludes anyone defined as not supporting this group.
Other additional features of populist-nationalism present in the case of Donald Trump are:
anti-debate: Those who oppose and seek to expose Trump’s non-factual claims have been quickly dismissed as liars, traitors or enemies of the state who should be sent to jail.
resistant to countervailing facts: Trump’s false claims are common features of his politics. By April 2019, the Washington Post identified more than 10,000 instances in which he had used false or misleading claims.
rejects intermediaries: Trump’s consistent attacks on the media as “fake news” highlights his disdain for any intermediaries between himself and “the people”.
crisis, breakdown or threat: Trump has used “crisis” talk to justify his anti-minority policies. He proactively incites fear of non-Americans with scenarios suggesting immigrants will take over the United States.