oh yes sorry.
The question is referred to States in the Region and about what happen if the "leading or carryng score" at the moment of the play of the Gathering Momentum card is for example 3 states each. It is a tie and the card is discrded without effect in my opinion.
Yes, you are correct. If both players are leading the same number of states in the region, then neither one gains the benefit of the event. The event is still removed from the game if played.