Joe Biden calls Vladimir Putin a 'crazy SOB'

The Kremlin was quick to respond to the president of the United States, calling him a "Hollywood cowboy."

During a fundraising event in San Francisco, Joe Biden called Vladimir Putin a "crazy SOB," later insinuating the Russian president could provoke a nuclear conflict.

"We have a crazy SOB that guy, Putin, others. And we always have to worry about a nuclear conflict. But the existential threat to humanity is climate," the president declared when talking about climate change.

Biden is a 'Hollywood cowboy'

The Kremlin was quick to react to Biden's insults against Putin. Dmitry Peskov, spokesman for the Russian president, assured that, with his words, the top American leader "debases" his country and called him a "Hollywood cowboy."

"Has Mr. Putin ever used one crude word to address you?" Peskov remarked, referring directly to Biden.