Observatoire politique de l’Amérique latine et des Caraïbes de Sciences Po

Amérique latine - L’Année politique is a publication by CERI-Sciences Po’s Political Observatory of Latin America and the Caribbean (OPALC). The study extends the work presented on the Observatory’s website (www.sciencespo.fr/opalc) by offering tools for understanding a continent that is in the grip of deep transformations.

François Vergniolle de Chantal

The US Congres is the most powerful legislative in the world. Its independence and its powers make it impossible for the presidency to be truly imperial. The Senate is especially influential since it allows its members to use a series of minority procedures, such as the filibuster, that exert a constant a priori pressure on the Executive. This institutional configuration is made extremely costly by the current partisan polarization. It is also, however, a functional equivalent to the theoretical parliamentary right of life and death on Executive powers.