Vladimir Putin fired back at Joe Biden after America’s commander-in-chief called the Russian leader a “crazy S.O.B.” during a 2024 campaign fundraiser in California, RadarOnline.com can report. President Biden’s remarks came on Wednesday during a campaign fundraiser in San Francisco. While Biden called the Russian president a “crazy S.O.B.,” he also issued a startling warning about the possibility of “nuclear conflict” between Russia and the United States. “We have a crazy S.O.B. like that guy Putin and others, and we always have to worry about nuclear conflict,” President Biden, 81, charged d…