While Latin American presidents often appear to dominate the political proc
ess, their political strategies are contingent on legislative support. The
venerable rule of anticipated reactions makes even primarily reactive insti
tutions like Latin American legislatures influential. The ordinary, noncris
is policymaking process in Latin America is a distinctive form of bilateral
veto game with features intermediate between U.S, presidentialism and Euro
pean parliamentarism. A typology using ambition theory to explain legislati
ve strategies matches recalcitrant, workable, parochial-venal, and subservi
ent legislatures with imperial, coalitional, nationally oriented, and domin
ant presidents.