National won 2023 despite 'aren't credible' costings, then dropped foreign house sales tax

National won the 2023 election after economists Michael Reddell and Sam Warburton found its costings "aren't credible", Reddell told RNZ. Leader Christopher Luxon had called the figures "absolutely rock solid". After forming government with ACT and New Zealand First, National rewrote its fiscal plan and dropped its 15 percent tax on house sales to foreigners.