Any EU negotiator *really* surprised by the new threat of 50% tariffs on EU imports to the US, unless they agree to Trump's demands really hasn't being paying attention....
This is an administration led by a bully & needs to be dealt with on that basis; sure, find ways to placate him in the short run, but the best long term bet is to neuter his influence;
marginalisation of the US market (already a strategic aim for China) looks like the best policy for the EU too