Donald Trump Jr. Emerges as a Loyal Enforcer

Ivanka and Jared left the White House behind for a life in Miami.Eric is running the family business.

Tiffany got married.Barron is a budding strategist at NYU.Of all the Trump children, no one has stuck closer to their father’s side than Donald Jr., the president-elect’s eldest son.The 46-year-old Mr.

Trump has found political power and personal fortune in stoking the flame of the Make America Great Again movement his father started.He has an array of conservative-focused businesses, from a publishing company to a seven-figure annual podcasting deal.

Forbes recently estimated Mr.Trump’s worth — largely built in the wake of his father’s political career after Jan.

6, 2021 — to be around $50 million.For that reason, his associates say, he has no plans to join the administration.But he also understands what his siblings and several first-term administration officials learned the hard way: Trying to serve as a gatekeeper for his father is a politically perilous exercise.In recent weeks, as the president-elect builds out his administration, his son has served as something of a loyalty scanner.

As they review candidates at Mar-a-Lago in Florida, the president-elect is concerned with who looks good and who can deliver a message, people around them say.His son is focused on whether they mean what they are saying, and if they present a threat to the MAGA order....