From August 29 through
September 1, 2026, the G20 met in North Carolina in the U.S.; the E.U. was
represented by one of its states, Ireland, because it was charged with chairing
the sessions of the European Council of Ministers, which in turn plays a
legislative role, as does the European Parliament, whereas the European
Commission is the E.U.’s executive branch. Such international meetings as those
of the G20 are attended by officials from executive rather than legislative
branches of government. Accordingly, the economy commissioner, Valdis
Dombrovskis, along with President von der Leyen should have been representing
the E.U. at the meeting.
The full essay is at "A State Represents the E.U. at the G20."