BRUSSELS — The European Union is expanding its powers to track, raid and deport migrants to "return hubs " in third countries in Africa and elsewhere, quietly adopting tactics of the Trump administration that have drawn public criticism across the 27-nation bloc. The E.U. continues to tighten migration policies after right-wing parties took power in some countries in 2024. European Commission President Ursula von der Leyen, from the center-right European People's Party coalition, has said the