From 2020 to 2022 he held ministerial office in the Morrison government, serving as Minister for Decentralisation and Regional Education (2020–2021), Veterans' Affairs (2021–2022) and Defence Personnel (2021–2022).

[3][4] After commencing practice as a solicitor, Gee started a business with his brothers David and Matthew licensing consumer products and promotions for international entertainment companies.

[4] He was interviewed by the South China Morning Post prior to the 1998 federal election, correctly predicting that Pauline Hanson would fail to be re-elected to parliament.

[6] His legal practice was in the fields of civil litigation and family law, and had offices in Queen's Square Chambers in Orange and Sydney.

[10] Gee's main competitor was John Davis, an independent candidate, Mayor of Orange, former Councillor on Blayney Shire Council, and local car dealer.

[2] Gee supported challenger Barnaby Joyce against incumbent leader Michael McCormack in the 2021 Nationals leadership spill.

On 26 March 2022, Gee gave a press conference in which he threatened to resign as a minister if additional funding was not provided in the Federal budget to address a backlog of claims from veterans.

A member of the Nationals told ABC News that Gee should have advocated for the funding months earlier if he had wanted to lock it in.