<prompt> Translate the following text to EnglishNi jambo la kuvutia kufikiria jinsi kesi hizi zingekuwa zimeamuliwa kama Bunge lingekuwa limeanzisha a504 a 16 bila masharti yake kuagiza tu marufuku ya jumla dhidi ya madai, lobbying, au sheria, ikiwa ni pamoja na juhudi za kurekebisha mfumo wa ustawi wa Shirikisho au Jimbo, na kama msimamo wa vyama mbele yetu hapa ungekuwa umebadilishwa.  <response>: It is illuminating to speculate how these cases would have been decided if Congress had enacted a504a16 without its proviso prescribing only the general ban against litigation, lobbying, or rulemaking, involving an effort to reform a Federal or State welfare system, and if the positions of the parties before us here were reversed. 