From Newsweek:
A top Kremlin official said President Donald Trump has launched an “act of war” against Russia with fresh sanctions on its largest oil companies and the cancellation of a proposed summit with Russian President Vladimir Putin.
“If any of the many commentators still harbored illusions — here you go. The U.S. is our enemy, and their talkative ‘peacemaker’ has now fully taken the road to war with Russia,” said Dmitry Medvedev, the deputy chairman to Putin on the Kremlin’s Security Council and himself a former president, in a post on Telegram.