President Donald Trump has appointed Bill Pulte, a loyalist housing official, as the new head of US intelligence. Pulte, who lacks national security experience, has a history of targeting political opponents.

B ILL PULTE, a 38-year-old Floridian, has run America’s Federal Housing Finance Agency for little over a year, mostly in blessed obscurity.

Trump’s pick of Pulte, a loyal deputy who has raised allegations of mortgage fraud against some of Trump’s political adversaries, such as New York Attorney General Letitia James and Sen. Adam Schiff (...