The political action committee founded by John R. Bolton, President Trump’s incoming national security adviser, was one of the earliest customers of Cambridge Analytica, which it hired specifically to develop psychological profiles of voters with data harvested from tens of millions of Facebook profiles, according to former Cambridge employees and company documents…

Cambridge’s so-called psychographic modeling techniques, which were built in part with the data harvested from Facebook, underpinned its work for Mr. Trump’s campaign in 2016, setting off a furious — and still unsettled — debate about whether the firm’s technology worked. The same techniques were also the focus of its work for Mr. Bolton’s super PAC.

“The Bolton PAC was obsessed with how America was becoming limp wristed and spineless and it wanted research and messaging for national security issues,” Mr. Wylie said.