Just ahead of Vladimir Putin's invasion of Ukraine, President Joe Biden made clear where the blame lay for Moscow's aggression: His predecessor Barack Obama. A new book by Bob Woodward describes Biden's frustration that his then boss did not take tougher action when Russian forces invaded Crimea almost a decade earlier. 'They f***ed up in 2014,' Biden said to a friend, according to Woodward. 'That’s why we are here.