Introduction
The introductory chapter sets out the broad political context that helps explain the Obama partial success in terms of antipoverty policies. It points out to major contradictions in the American political tradition: a deep-seated suspicion of government intervention combined with a strong attachment for entitlement programs, the paradox of a presidential institution portrayed as one of the most powerful in the world but that faces considerable constraints in terms of enacting domestic reforms. The introduction enumerates the structural constraints – constitutional and institutional - that limit the president’s capacities for action. In essence, the legitimacy of the federal government intervention has always been a contested terrain. This has resulted in variable-speed federalism, with a strong pattern of state diversity, especially in relation to welfare.