You can be sure of only two  Each party is arguing exactly the opposite of what it argued the last time a Republican president led the nation into war, and exactly the opposite of what it will argue next time.
Each party is agreeing again. 
mnli hypothesis: Each party is agreeing again.  premise: You can be sure of only two  Each party is arguing exactly the opposite of what it argued the last time a Republican president led the nation into war, and exactly the opposite of what it will argue next time.