On March 21, Russia’s foreign ministry said that it had summoned U.S. Ambassador John Sullivan to tell him that remarks by President Joe Biden about Russian President Vladimir Putin had pushed bilateral ties to the brink of collapse. President Biden, last week, said that Putin was a “war criminal” for sending tens of thousands of troops into Ukraine. “Such statements from the American president, unworthy of a statesman of such high rank, put Russian-American relations on the verge of rupture,” the ministry said in a statement.
