“We have crazy sons of bitches like this guy Putin and others, and we always have to worry about a nuclear conflict, but the existential threat to humanity is climate change,” he was quoted as saying by RIA Novosti.

Biden previously said that he would not take sides “with dictators like Putin.”

In 2022, the US President, while visiting a Ukrainian refugee camp on the border of Poland and Ukraine, answered a question from a journalist who asked what he thought about Putin.

Responding, the head of the United States called the Russian leader a “butcher.”

The Kremlin said that Biden's insults against Putin further narrow the window of opportunity for improving Russian-American relations.

Also, the press secretary of the Russian President Dmitry Peskov reminded Biden that the leader of the state must remain sober.