, 11 December 2017 During the
2017 and
2020 New Zealand general elections, Parker was re-elected to Parliament on the Labour Party list. In 2017, he unsuccessfully contested the
Epsom electorate. Following the formation of the
Labour–New Zealand First coalition government, Parker was sworn in for a second appointment as Attorney-General and also became
Minister for Economic Development,
Minister for the Environment, and
Minister for Trade and Export Growth. He also became
Associate Minister of Finance. The depth and breadth of his portfolios led him to be described as "the minister of almost everything", an epithet that had previously been given to
Sir Michael Cullen. Parker was seen as a trusted confidante of the prime minister,
Jacinda Ardern, and was remarked as having a close relationship with the deputy prime minister,
New Zealand First leader
Winston Peters. Chess international master and journalist
Vernon Small was brought on as Parker's press secretary. Parker's economic development portfolio was reassigned to
Phil Twyford in June 2019; Ardern said this was so Parker could focus more on domestic water quality proposals and free trade negotiations with the European Union and United Kingdom. In the Labour government's second term, from October 2020, he was reappointed as Attorney-General, Minister for the Environment, and Associate Minister of Finance. He also became
Minister for Oceans and Fisheries,
Minister of Revenue and, briefly in 2023,
Minister of Transport. Several commentators saw him as a candidate for foreign affairs minister in 2020; that role instead went to
Nanaia Mahuta. On 28 February 2022, Parker became the first New Zealand Member of Parliament to test positive for
COVID-19.
Attorney-General During his second period as Attorney-General, Parker made three appointments to the
Supreme Court of New Zealand. With prime minister Ardern, Parker oversaw the appointment of
Dame Helen Winkelmann as
Chief Justice—the first such appointment since the creation of the Supreme Court in 2004—in November 2018. Parker also announced the elevation to the Supreme Court of
Sir Joseph Williams in May 2019 and of
Sir Stephen Kós in April 2022. In May 2020, as Attorney-General, Parker led the passage of the
COVID-19 Public Health Response Act 2020 (the PHRA) through Parliament. This provided the legal framework for the Government's efforts to combat COVID-19. Shortly before the bill was introduced, Parker gave a lengthy
Facebook Live address where he addressed and refuted the claim that the government's lockdown direction was unenforceable; the High Court later found that while this was justified, it was not lawful for the first nine days. In an address to the New Zealand Centre for Public Law in December 2021, Parker reflected on the legal framework for managing COVID-19. He said that in his view, the PHRA served New Zealand well until the emergence of the
SARS-CoV-2 Delta variant in 2021. In November 2021, Parker chaired the annual meeting of attorneys-general from Australia, Canada, New Zealand, the United Kingdom, and the United States. In 2022, he progressed the New Zealand Bill of Rights (Declarations of Inconsistency) Amendment Bill, which required if Supreme Court finds a law to be inconsistent with the
New Zealand Bill of Rights Act that the issue be returned to Parliament. Parker led the government's development of new policy and two new laws: the
Natural and Built Environment Act 2023 and the
Spatial Planning Act 2023. Both bills were introduced into parliament on 14 November 2022 and passed into law on 16 August 2023. Parker said his rationale for replacing the RMA was that it had become too complex and expensive, without adequately protecting water quality or decreasing carbon emissions. The legislation was repealed in January 2024 after a change of government. Parker launched the government's freshwater policy statement in September 2019, which aimed to improve water quality in lakes and rivers. A report Parker had commissioned the previous year had found significant water quality issues, including increases of nitrates and
E. coli. By 2020, another report showed that water quality had not improved in nearly half of monitoring sites. Tighter water quality regulations, including controls on winter grazing of stock, were enacted in 2020 and these were soon described as "onerous" and "unworkable" by farming lobbyists. However, environmental advocates like
Mike Joy said Parker's regulations were insufficient at addressing nitrate pollution. Following the change of government in 2023, the winter grazing rules are expected to be repealed by the end of 2024. As the first minister in the new
oceans and fisheries portfolio, Parker launched the government's sustainable oceans strategy in a pair of speeches to
Forest & Bird in June 2021 and Auckland University in June 2022. During two years in the portfolio, he launched a marine protected area in the
Hauraki Gulf and reformed fisheries legislation. He passed the portfolio to
Stuart Nash in February 2023, and held it briefly again after Nash's dismissal from the executive in March 2023. In March 2023, Parker used his discretionary powers as environment minister to dismiss
Rob Campbell as chair of the
Environment Protection Authority following the latter's criticism of the National Party's opposition of the
Three Waters reform programme, which breached the
Public Service Commission's neutrality policy.
Economic and trade portfolios Parker was
Minister for Economic Development from October 2017 to June 2019. In the
2019 budget, he announced a new $300 million
venture capital fund, administered in a similar way as the
New Zealand Superannuation Fund. Parker said the intention of the fund is to increase productivity and generate revenue to fund future superannuation. After leaving the economic development portfolio, Parker was continued as the responsible minister for the venture capital fund through his associate finance delegation. He said in 2023 that the fund had already generated $1 billion total market capital available for start-up companies. Parker's finance delegation also included responsibility on behalf of the
Minister of Finance for the
Overseas Investment Act 2005. In August 2018, Parker led the passage of the
Overseas Investment Amendment Act 2018, that banned the sale of existing residential property in New Zealand to foreign buyers. As
trade minister between 2017 and 2020, Parker's trade strategy centered on defending the rules-based system for international trade led by the
World Trade Organization and embedding New Zealand within Asia-Pacific free trade agreements. On 8 March 2018, he signed the
Comprehensive and Progressive Agreement for Trans-Pacific Partnership on behalf of New Zealand. In October 2018, he led New Zealand's ratification of the
PACER Plus agreement. He also worked with
Liz Truss, then the United Kingdom
Secretary of State for International Trade, on the development of a United Kingdom–New Zealand free trade agreement. In 2019, Parker announced government support for Saudi Arabia "agri-hub" he had questioned, and described as a bribe, in Opposition had been cancelled.
Revenue portfolio Parker became
revenue minister in October 2020, having requested to hold the portfolio. He was responsible for legislating the government's
Budget 2022 "cost of living" payment scheme for low-income individuals, but faced criticism for the scheme's poor implementation. Around the same time, he proposed adding
goods and services tax to
KiwiSaver account fees but the proposal was dropped due to widespread criticism. Parker said the proposal would have made the tax system more consistent, but opponents accused it of "eating into" retirement savings.
New Zealand Herald columnist Audrey Young said these incidents showed Parker's difficulty at seeing political risk. Parker also conducted work on tax inequality, which he said was his main priority in the portfolio and was inspired by reading
Thomas Piketty's
Capital in the Twenty-First Century. In the speech, he said: "the effective marginal tax rate for middle income Kiwis is generally higher than it is for their wealthiest citizens. Indeed, some of their wealthier Kiwi compatriots pay very low rates of tax on most of their income." One year later, he released research from the
Inland Revenue Department that found New Zealand's wealthiest families pay less than half the amount of tax, across all forms of income, than most other New Zealanders. Parker said the "internationally ground-breaking research" revealed a "large differential between the tax rates ordinary New Zealanders pay on their full income compared with the super-wealthy". Piketty responded to the report saying New Zealand should institute a wealth tax. Following on from these findings, in May 2023, Parker introduced the Tax Principles Reporting Bill that proposes an ongoing reporting framework for fairness in the tax system. The relevant principles were horizontal equity, efficiency, vertical equity, revenue integrity, compliance and administrative costs, certainty and predictability, and flexibility and adaptability. The bill, which passed its third reading in August 2023, was described by National Party opponents as "David Parker's pet envy project." It was repealed under urgency by the incoming National government in December 2023, days before the first report was due to be published. Despite the repeal, the
Inland Revenue Department published a draft of the report on its website; the report presented factual information about the tax system without making recommendations. Parker resigned his role as revenue minister on 24 July 2023, describing remaining in the position as "untenable," after prime minister
Chris Hipkins said Labour would not introduce a wealth tax policy that Parker had spent several years developing. Parker also refused to say whether he thought Hipkins' preferred tax policy (removing goods and services tax on fresh fruits and vegetables) was workable. His stance was criticised by
The New Zealand Herald's Claire Trevett as "an ill-timed bout of personal principle that carries a whiff of petulance and selfishness" that came in the lead-up to an election and amid several other resignations of Cabinet ministers for various scandals, but was praised by former revenue minister
Peter Dunne as the correct decision and by journalist Simon Wilson for being a rare act of principle. == In opposition, 2023–2025 ==