Part 1 here
ChrisF wrote : The modifier is outside of the "a X or a Y" clause. If the modifier were between either of the "a X" or "a Y" clauses, then you would be correct.
Though in the wiki I mentionned previously, it was stated pretty clear than if it's "X or Y [modifier]" then X and Y are modifier, if it's "a X and a Y [modifier]" then only Y is modified.
So, through your answer, it does seem it's neither, and it should be read : Political Reaction: during a battle when paying a Gold Cost of a Fate card or an action : Produce 2 Gold.
How do I know from the wording of the card the "during" clause doesn't qualify the type of action, but the timing of the whole reaction ?
EDIT : trying to correct minor issue