RNZ9 Sep, 2026 06:48 AM5 mins to readA complaint to the Advertising Standards Authority focused on National's criticisms of Labour's capital gains tax policy. A complaint to the Advertising Standards Authority focused on National's criticisms of Labour's capital gains tax policy. By Giles Dexter of RNZThe Advertising Standards Authority has partly upheld a complaint against a National Party attack ad, and told the party not to use it again in its current form.The complaint focused around National’s criticisms of Labour’s capital gains tax (CGT) policy.