My mate “Jim Johnson”:http://politicstheoryphotography.blogspot.com/2008/01/against-bi-partisanship.html has a very nice post on the problems with bipartisanship.
In terms of consequences, why should we endorse bi-partisanship? That is a fundamentally _anti-democratic_ response. Here I am persuaded by argument by political theorists who, following Joseph Schumpeter (whose conception of democracy is, despite common caricatures, neither a ‘realist’ nor ‘minimalist’), insist that robust competition is crucial to a healthy democracy. For instance, Ian Shapiro* suggests that competition has two salutary effects: (i) it allows voters to throw out incumbents (known more appropriately as ‘the bastards’) and (ii) it pressures the opposition to solicit as wide a range of constituencies as they are able. Given these effects, Shapiro suggests quite pointedly:
bq. If competition for power is the lifeblood of democracy, then the search for bi-partisan consensus … is really anticompetitive collusion in restraint of democracy. Why is it that people do not challenge legislation that has bi-partisan backing, or other forms of bi-partisan agreement on these grounds? …
… Among the crucial empirical observations about partisan polarization in the U.S. is that it reflects the economic bifurcation (in terms of wealth and income mal-distribution) among the population. Because the poor participate at relatively low levels, and because many recent immigrants remain unnaturalized (hence disenfranchised), the constituency for a real alternative to right-wing policies remains politically inchoate. The solution to political polarization is to attack economic inequality, to resist anti-immigration policies, and so forth. That might, in fact, require Democrats to stop their headlong rush to mimic Republicans and prompt them to seek to forge broader and deeper alliances between constituencies that do not now see one another as allies. But that would require the Dems to be political rather than play the bi-partisan game. What we need is more robust competition.