He did. He imposed sanctions and pressed for condemnation through official international channels. It was this action that purportedly directly led to the active measures campaign the Russians waged against the US election in 2016.
I generally respect a lot of your insights because of the fact that they throw cold water on what can rightly be called hysteria or sensationalism.
But it seems lately you've pivoted to simply sharing outright disinformation or are being willfully ignorant about a lot of things you post related to US politics. I get that as a foreigner, living in a foreign country, you may lack some proper context or understanding of our laws. I also get that it gets tiresome being assailed at all times by your own media about the US, particularly when there are troubling things happening in your own government that seemingly get downplayed or excused. But I'm unclear why you're so in the tank for Trump and so committed to defending him. He's basically Dana White and the tweets you share are basically like sharing the UFC's tweets and pretending they represent reality. I'm as down with the fun of the team sports aspect of politics as anyone, but that means you cheer when your team scores and boo when the other team does. All your posts lately just seem to be cheap attempts at working the refs.