With reference to your inquiry as to whether the two disagreements between the Houses, which are conditions precedent to the granting of a double dissolution, may occur in the same session or must occur in different sessions, I desire to say that in my opinion it is clear that the two disagreements may occur either in the same session or in two consecutive sessions, so long as, in either case, an interval of at least three months occurs.
The question turns on the provisions of the first paragraph of section 57 of the Constitution. That paragraph reads as follows: