Appearing in the media to criticise the Sixth Labour Government's gun law reforms, passed following the Christchurch mosque shootings of 15 March 2019.

[4] The new restrictions on gun ownership and game animal management are the issues which propelled her to enter politics.

While she did not win the electorate, McKee was elected through the party list since ACT won 7.6% of the vote, entitling it to ten seats in Parliament.

[9] McKee contested Rongotai unsuccessfully for a second time at the 2023 general election, coming fourth place.

[16] In late June 2024, McKee also defended the Government's plan to amend Part 6 of the Arms Legislation Act 2020, which requires oversight and regulation of shooting clubs and ranges.

In response, McKee defended the short consultation timeframe and argued that the law needed to be change to help club ranges and owners "struggling with burdensome and confusing regulation.

"[17] On 12 August 2024, NZ Police Association's president Chris Cahill called for McKee to be removed from the firearms reform portfolio due to the union's exclusion from the consultation process for the amendment to the Arms Legislation Act.