The Kremlin spokesman says the United States under outgoing President Donald Trump created exceptional havoc in world politics and violated all possible rules.
"Things show that no more 'red lines' remain at all. In world politics, our colleagues from the United States created such havoc that all rules were simply broken," Dmitry Peskov said in an interview with state-owned Russian television Channel 1 on Tuesday.
"Everything they teach at the Moscow State Institute of International Relations is no longer relevant. That's it, all rules were broken," he added.
The Kremlin spokesman, however, ruled out the possibility that a new global war was what should be expected to follow the breakage of old regulations by the Trump administration as "nuclear parity" existed among world powers.
"The war is, thank God, impossible so long as there is nuclear parity," he underlined. "It saves the world from war, even though terrible wars take place right before our eyes."
During his four-year presidency, Trump withdrew the US from a number of multilateral accords, among them the 2015 Iran nuclear deal, the Intermediate-Range Nuclear Forces (INF), and the Anti-Ballistic Missile (ABM) Treaty with Russia, and the Paris climate accord.
Moreover, relations between the US and Russia remain strained over such other issues as Syria and Ukraine as well as allegations of Russian interference in the 2016 US presidential election, which Moscow denies.
Peskov said ties between Moscow and Washington "will not get worse" under US President-elect Joe Biden.
Peskov's comment echoed Russian President Vladimir Putin's recent remarks that relations with the United States "will not be more difficult for Russia" after Biden takes office. Putin even expressed hope that the newly-elected US president would help resolve some of the difficult issues in relations between Moscow and Washington.
Trump has so far refused to concede defeat in the November 3 election and mounted multiple legal challenges to reverse the results in several key states after his Democratic rival was declared winner.
Biden won the state-by-state Electoral College votes, which decide who takes the White House, by 306 to 232.