>Mostly the widespread perception that the USA has betrayed the security guarantees given to Europe, and that the USA isn't a reliable partner anymore.

Mostly the widespread perception that the Trump administration has betrayed the security guarantees given to Europe, and that the USA isn't a reliable partner anymore.

Hardly a distinction worth making; if the USA votes for such unstable and highly egoistic politicians TWICE, it's quite clear they aren't a reliable partner anymore.

Even if they vote in a sane president next, we cannot rely on them in the long run, because the one after that could be a lunatic again.