In Government, 2014–2017 Bayly was elected to Parliament at the
2014 general election, as the National MP for
Hunua with a majority of 17,376 votes. He replaced
Paul Hutchison who retired. He had the fourth highest majority of all electorate seats in New Zealand. During the
51st New Zealand Parliament, Bayly served as a member of the
Finance and Expenditure Committee and the Transport and Industrial Relations Committee, as deputy chair of the Regulations Review Committee, and as chair of the Local Government and Environment Committee. While it was not selected for introduction, a similar bill was introduced by the
National Government in 2017 and was later passed unanimously by Parliament under the
Labour Government in 2019. Bayly also successfully steered the Arbitration Amendment Bill through Parliament which passed through the House unanimously and which significantly enhanced arbitration proceedings and how they are conducted in New Zealand.
In Opposition, 2017–2023 At the
2017 general election, Bayly retained Hunua by a margin of 19,443 votes. However, National did not win the election. Bayly held various party spokesperson roles under National's four leadership configurations that term. These included building regulation under
Bill English; revenue, building and construction under
Simon Bridges; revenue, commerce, and state-owned enterprises under
Todd Muller and
Judith Collins. He was also an associate finance spokesperson under the final three leaders. In the 2017–2020 term, Bayly continued as a member of the
Finance and Expenditure Committee. For the
2020 general election, Bayly's electorate of Hunua was disestablished. A new electorate,
Port Waikato, comprising part of the old Hunua electorate and part of the old
Waikato electorate, was created. Bayly contested Port Waikato and was re-elected by a margin of 4,313 votes. Bayly was regarded as a "close ally" to National leader
Judith Collins. When she reshuffled
her shadow cabinet on 11 November 2020 and promoted Bayly to third rank with the positions of shadow treasurer (senior to the finance spokesperson
Michael Woodhouse) and National Party spokesperson for infrastructure and statistics. This was a promotion of 14 places in National's shadow cabinet, and Bayly was described by reporters as the "big winner" in the reshuffle, but also as "relatively unknown" and "little-known." Some media comment focussed on Bayly's title of shadow treasurer, despite there being no person in the Government with the role of Treasurer to shadow, although Collins suggested re-establishing that role if National were to win the next general election. Bayly was given responsibility for revenue policy, budget preparation and review, monetary policy,
KiwiSaver and the
New Zealand Superannuation Fund. However, Bayly was criticised for being "invisible" and ineffective. On 10 November 2021, the New Zealand Superannuation and Retirement Income (Fair Residency) Amendment Bill was passed. This was a member's bill in Bayly’s name, although it had been introduced by former
New Zealand First MP
Mark Patterson in the previous term of Parliament. The bill changes the criteria for
New Zealand superannuation so that older migrants, and New Zealanders who spent large portions of their lives overseas, must wait longer to qualify. Following the appointment of
Christopher Luxon as party leader on 30 November 2021 and a subsequent reshuffle of the shadow cabinet in early December, Bayly was demoted to 15th position and given responsibility for revenue, small business, commerce and consumer affairs, building and construction, and manufacturing.
In Government, 2023–present Bayly contested Port Waikato in the
October 2023 general election, but the electorate vote was postponed to
a by-election in November after another candidate died. In the interim, Bayly was elected as a list MP. He won the by-election with a margin of 11,432 votes over
New Zealand First candidate
Casey Costello. In the
Sixth National Government, which formed during the by-election period, Bayly was appointed as a minister outside Cabinet with responsibility for
commerce and consumer affairs,
statistics, and
small business and manufacturing. In October 2024 Bayly apologised after telling a worker at an export business he had visited to "take some wine and fuck off", and calling him a "loser". The worker wrote a formal letter of complaint after the incident. Bayly described his behaviour at the visit as "unbecoming of a government minister", and denied being intoxicated. Following a
cabinet reshuffle on 19 January 2025, Bayly became the Minister responsible for the
Accident Compensation Corporation (ACC). He continued as commerce minister, but lost responsibility for statistics and small business and manufacturing. In February 2025, Bayly resigned as a Minister after an "animated discussion" where he placed his hand on a staff member's upper arm. He issued a public apology for his actions. On 10 March,
Radio New Zealand reported that Bayly had taken two weeks' leave from Parliament to trek to
Mount Everest's base camp in Nepal. A spokesperson for Luxon stated it was rare for National to grant personal leave while Parliament was sitting, with requests being considered on a case-by-case basis. Bayly returned to Parliament at the end of March and in April was appointed the chair of the Justice committee. In December 2025, Bayly hosted 22 parliamentarians and other representatives from 20 countries at the third Antarctic Parliamentarians Assembly in Wellington. Delegates heard from scientists and discussed current issues affecting Antarctica. Bayly will chair the steering committee for the next Parliamentarians Assembly, set for 2027. In March 2026, Bayly announced he would not contest the Port Waikato electorate at the
2026 election, as he was moving to the
South Island, and would instead explore a placement on the National Party list. ==References ==