I think that Biden missed a good moment in the war in Ukraine 2 years ago (autumn 2022). At that time, it was necessary to press Russia harder and force it to reach a truce that would be beneficial for Ukraine. Unfortunately, since then the situation on the front and the social mood in Ukraine have got worse significantly. The tactic of keeping Ukraine on a drip has led the West to nothing. On the other hand, increasingly pro-Rus politicians are starting to come to power in other countries: Trump, Slovakia, Austria, and AFD is growing in Germany. Now, Trump's attitude will be crucial, what to do with this conflict. Unfortunately, Biden's entire presidency was conservative and weak. Harris' campaign was no different. This led to Trump's return and a much stronger one than he was four years ago. There is a lack of clear leaders in the West. Basically every important country is in chaos: USA, UK, Ger, Fra (only Macron has stayed in power of these leading countries recently but also his position is weaker than before). In my opinion he also isn`t able to take over leadership in Europe in the face of the crisis in the USA.