Volcker was appointed by Carter, not Reagan.
Then appointed by Carter in ‘79 to the Federal Reserve.
But most of his interest rate tightening happened under Reagan with a peak tightening in ‘81 with fed funds rate at 20%.
https://www.businessinsider.com/ronald-reagan-fed-chair-volc...
Volcker also recalled telling Carter during his interview for the job that yes, he could stop inflation -- but then Carter would not be re-elected. Carter's reply was "Do it anyway."
He served out his 2nd term and was not renominated.
Not arguing that it wasn’t political, it clearly is even based on the Biden nomination.