First term, 2020-2023 Mooney was selected as the
National Party candidate for the new
Southland electorate in July 2020, following
Hamish Walker's decision to leave Parliament after he admitted that he had leaked private patient information to the media. Mooney has identified the first issue he intended to deal with as an MP will be to get more seasonal workers "on the ground" to address the fruit-picking "crisis" in Central Otago. From November 2020, Mooney served as National Party spokesperson for
Treaty of Waitangi negotiations and associate spokesperson for defence. Since December 2021, after
Christopher Luxon became the party leader, Mooney has additionally been spokesperson for water and space. He served as a member of the Māori Affairs Committee and was also a member of the Regulations Review Committee from December 2021 to August 2022. In April 2023, National Party leader Christopher Luxon said Mooney had got it wrong after he made comments on social media about
Te Tiriti o Waitangi, saying on
Twitter that Te Tiriti o Waitangi promised
tino rangatiratanga to every person in New Zealand. Dame
Claudia Orange, who has written extensively about Te Tiriti o Waitangi, said Mooney appeared to be subscribing to the old politics of former National leader,
Don Brash. “That's just kind of one way that Don Brash tended to argue, and it's really got no substance to it, if you looked at why [tino rangatiratanga] was included in the Treaty and the effect that it actually gave Māori in terms of recognising their
mana,” she said.
Second term, 2023-present During the
2023 New Zealand general election, Mooney retained his Southland electorate seat by a margin of 17,211 votes. ==Personal life==