President Joe Biden calls Putin a ‘crazy SOB’ and takes aim at Trump …

SAN FRANCISCO — During a fundraiser for his reelection campaign Wednesday night, President Joe Biden called Russian President Vladimir Putin a “crazy SOB” and took aim at former President Donald Trump’s comments comparing himself to the Russian opposition leader who died last week in an Arctic prison.

Biden was talking about climate change when he said, “We have a crazy SOB like Putin and others, and we always have to worry about nuclear conflict, but the existential threat to humanity is climate.”

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Speaking to donors at a private San Francisco home Wednesday as part of a three-day California swing to raise money for his 2024 reelection campaign, Biden also said he was astounded by recent comments made by his likely Republican challenger.

Trump compared the suspicious prison death of Russian opposition leader Alexei Navalny to his own legal troubles in the U.S. Trump was fined $350…