Two political big forces in Sweden (social democrats and Centre-right Alliance Bloc) have made a deal against the anti-immigration Sweden Democrats. Under the deal, both parties will govern by rotation until 2022. Such a pact is legitimate, but is allowed to designate the parties sharing power for more than a parliamentary mandates? Does this new form of agreement a threat to democracy’s model of Sartori and to the election? Is possible to found such practices in other countries (in the last two decades) where two political groups determine the future government despite election results?