The phrase "a trusted aide" is correct and usable in written English.
You can use it to refer to someone who is reliable and provides assistance or support, often in a professional or political context.
Example: "The senator relied heavily on a trusted aide to manage his schedule and communications."
Alternatives: "a reliable assistant" or "a loyal advisor."
Mr Romney has turned the initial search over to Beth Myers, a trusted aide.
The younger Mehsud was a trusted aide of Baitullah Mehsud, for whom he had sometimes acted as a bodyguard.
Before joining the board, he was a trusted aide to Alan Greenspan during his long tenure as chairman.
A trusted aide should take the president aside and quietly inform him that this nightmare arrived a good while ago.
In a statement, Gov. George E. Pataki credited Mr. Moses as a "trusted aide, adviser and friend".
"It made me feel confident and secure," said Gutman, a trusted aide to the team's late owner, Leon Hess.
Ahmed Wali Karzai, who was assassinated Tuesday, apparently by a long trusted aide and member of his inner circle, was the sixth son.
The first governor of Sanjak Gaza was Kara Shahin Mustafa, a former jannissary (member of a military corps) who rose to become an elite military officer and state minister and eventually a vizier and trusted aide of Sultan Suleiman the Magnificent.
The departure of Harri, an effective operator seen as Johnson's most trusted aide, would be a huge blow to the high-profile Conservative politician.
Portions of those accounts, including prosecution claims that Mr. Bo's most trusted aide had a hand in the cover-up, were omitted from an official narrative released by the state media, fueling accusations that the authorities were trying to shield Mr. Bo from any criminal charges.
He returns to Vietnam to help keep all that at bay and finds himself naturally suited to espionage, which he pursues while working in the South Vietnamese army and serving as the trusted aide of a general with strong CIA connections.
