Great point. Announcing tariffs should be painful for the US, not an easy way to get a sweater deal. If the EU accepts an unfair deal under pressure, the US will announce new tariffs again to put further pressure, and further change terms.
The commission is pushing back on tariffs, as it should. Each time the US' shameful leader announces upcoming tariffs, the EU executive prepares and publishes a list of US product that will be hit by retaliatory tariffs.
Génial