He has said that Mr Trump "made the right call" when he fired James Comey as director of the Federal Bureau of Investigation, and that he saw more merit in investigating donations to the Clinton Foundation than claims of...
Plucked from Fox to be the State Department's public face, Nauert catapulted into the upper echelons of the agency's hierarchy when Rex Tillerson was sacked in March and replaced with Mike Pompeo.
She also got a major promotion, becoming the acting under-secretary for public diplomacy and public affairs, the fourth highest official at the State Department.
That role gave her responsibilities far beyond the news conferences she held in the State Department briefing room.
Nauert, whose nomination will require Senate confirmation, is a former Fox News Channel correspondent and anchor.
The television-loving president has chosen a series of Fox personalities for high-level posts and consultation.
With her vast expertise in TV journalism, including eight years at Fox News and at least three at ABC, Ms Nauert certainly knows how to behave in public and deliver neat and well-targeted speeches.
Mr Trump told reporters last month that Ms Nauert was "excellent", adding, "She's been a supporter for a long time".
In 2016, she tweeted a New York Times story on Muslim Americans' concerns about the rise of Trump, writing: "Omg-They should meet #ISIS". Nauert has served as a spokesperson for the State Department since April 2017.
Nauert raised eyebrows in June when she appeared to describe the D-Day landings - when the United States, Britain and allies stormed Nazi-occupied France in 1944 - as evidence of a longtime "strong relationship" with Germany. Even more so if the skill is coupled with a wide, snow-white smile, precisely like Nauert's.
A White House official says the Trump administration is downgrading the US diplomatic post at the United Nations to a non-Cabinet position. "She's very talented, very smart, very quick". The more treaties we sign, the safer we supposedly are.
"Having said that, if they had launched something, if it had come near the US, the president totally would have". The president both denies watching hours of Fox and other networks each day and says publicly that he "watches all the shows".
She does, however, have something in common with Bolton.