Two distinct proposals, A and B, are being debated in Washington. Congress likes proposal A, and the President likes proposal B. The proposals are not mutually exclusive; either or both or neither may become law. Thus, there are four possible outcomes, and the rankings of the two sides are as follows, where a larger number represents a more favored outcome: Outcome Congress President A becomes law 4 1 B becomes law 1 4 Both A and B become law 3 3 Neither (status quo prevails) 2 Now suppose the rules of the game are changed in only one respect; the president is given the extra power of a line-item veto. Thus, if Congress passes a bill containing both A and B, the president may choose not only to sign or veto the bill as a whole but also to veto just one of the two items. Show the new tree and find the rollback equilibrium.