Donald Trump's action comes amid a dispute with Ukraine's Volodymyr Zelensky that has fuelled speculation that the US president is increasingly siding with Russia in the war. (EPA Images pic)MOSCOW: US President Donald Trump's decision to waive a new package of sanctions on Russia is a "historic moment", a Russian presidential envoy said Saturday.

Trump signed an executive order Friday that waived sweeping US sanctions and tariffs targeting Russia's energy revenues, two days before they were due to take effect.

The move came amid a clash with Ukrainian President Volodymyr Zelensky that has fuelled speculation the US leader is increasingly siding with Moscow nearly five years into Russia's offensive against Ukraine, which has killed hundreds of thousands of people and displaced millions.