Yes, it seems to be moderately based on this sort of speculation, but it has less to do with the budget than the left wing extremist track the Liberal Party has taken of late.
My proof? I have none. Need some hints? Look at certain aspects of the budget and think, now that doesn't seem like a Conservative item...who on the other side of the floor would want that in the budget?
I'm just jotting this down so when it happens, I can say, "I told you so!"
And don't worry my friends, none of the potential floor crossers have the initials G.T.