-Analysis- PARIS — The rhetorical formula comes from Thierry Breton, the current European Commissioner for Internal Markets: Is Europe doomed to have its fate determined every four years by a handful of American voters? It has never seemed more accurate than right now, with the American primaries effectively already over, and voters on the other side of the Atlantic set to replay the Biden-Trump faceoff of 2020 on November 5. Having spent the past few years either confident or indifferent about the impossibility of a Trump return, Europeans now see the possibility, even probability, of a victo…