The Obama-Clinton-Biden and Bush gang all made this war happen. It was set in play well over a decade ago by the CIA and State Department, which both parties kiss the ass of.
Under Obama they fully supported the Euro-maiden “protests“ which turned into a coup and overthrew the elected President there. The State Department (Victoria Nuland, John Kerry) forced the Ukrainians to pick a corrupt piece of shit for their new President. This caused a civil war in the country since the new U.S. backed regime started going after ethnic Russians. This is when Russia took back Crimea officially. Up to that point it was leased to them from Ukraine.
Then four years of relative peace when President Trump got into office. No escalation of war for four years. And well…the CIA and warmongers cannot have that.
So the CIA and Feds installed Biden in the White House, because he has never said no to any war and always pushes for more spying power for the CIA and FBI. Then within a year he did everything he could to trigger an all out war with Russia, and did exactly that.
Biden did not “start“ this war by himself, but he was always been on the team that did start it: the warmongers of Washington.