During a fund-raiser for his reelection campaign on February 21, President Joe Biden called Russian President Vladimir Putin a “crazy SOB” and took aim at former President Donald Trump's comments comparing himself to Aleksei Navalny, the Kremlin opponent 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.” Speaking to donors, Biden also said he was astounded by recent comments made by his likely Republican challenger.