Eric, here's a question for you. Did you know that the last episode of Lilo & Stitch doesn't conclude any story arc? It's because they cancelled the series prematurely in 2009.
The problem with X party blocked X bill that would have prevented X is that yes the bill probably would have worked great, buuuttt they put XYZDCBG in said bill as an attempt to sneak things in that tend to be completely unrelated to the original bills intent. It sucks because if they would just do a single thing they could probably get something done...