Both can be true, but the structural forces (described by snowwrestler) predominate the influence of parliamentary expertise. Parliamentarianism is a game in it

Both can be true, but the structural forces (described by snowwrestler) predominate the influence of parliamentary expertise. Parliamentarianism is a game in itself, and it's only effective insofar as actual politics are being done, which is rarely the case on the floor of the US congress, which is more like a theatre stage where politics have usually been preempted by economics relations.