Speaking of the death of bipartisan policy formulation in the IS Congress, this writer describes is as something  that actually was broken by the Democrats in the Obama years". 
Well, hardly! 
It is beyond clear that what remained of the bipartisan tradition was broken by the intransigence of Republicans in their across-the-broad refusal to co-operate with  Democrats on any matter - most blatantly demonstrated by the declaration of Senate Republican leader McConnell that his party's highest priority was "to ensure that Barack Obama is a one-term President".