Have you not been paying attention to how Trump talks about tyrants? His love letters with Kim Jong Un? Endorsements of Viktor Orban and Bolsonaro? He's a "big fan" of Erdogan? For years now, he's been positively gushing about how much he admires Putin. He tried his damnedest to pull a coup last year, because he wants to join the league of tyrannical dictators. And sure, he badmouthed Biden and insisted that things would be different if he was at the helm, but has he ever shown real opposition to any actions of Putin? Or did he deliberately soften eastern Europe's defensive stance against Russia when he pulled American troops out of Germany?
He pulled troops from Germany (which is not the front anymore) and put troops in Poland and other eastern countries. How is this a move to help Putin? He moved troops on the front and started more bases.
Exercises and bases in all Eastern Europe intensified under Trump.
He likes to talk nicely about people that he's going to strike. Like he always says he likes Xi, but then start a trade war anyway.
He blocked NS2, Biden opened it in his first week in office.
If Trump was so weak toward Putin, Putin would have invaded with Trump in the White House...but Putin invaded with Biden there(and previously woth Obama). Makes you think, doesn't it?