IIUC, the Commission proposes laws, that are then voted on in the Parliament by a simple majority of hands. Seats in the Parliament are allocated on the basis of number of member residents.
At any one time, the UK has a single Commissioner who is either the head or a representative with a specific brief.
Say the UK has a Commissioner for Energy. Can that commissioner veto a law being proposed by another part of the commission (eg Budget) on the basis of national interest?
Or is there another mechanism for veto (or none at all, or only in some areas)?