How does it make any sense that Trump pushes a populist rhetoric, while simultaneously being part of the “elite”?

Populism - a political approach that strives to appeal to ordinary people who feel that their concerns are disregarded by established elite groups.

Trump, and his administration is undeniably part of the elite, and this is further exemplified with Elon having so much involvement in the campaign. How do you think he has he convinced people that he is pro-populism while also being in the elite class?