The convergence of Democrats around the universal background check bill partly derives from the overwhelming public backing for the measure, which usually exceeds 80% support in polls. (The bill would close what's called "the gun show loophole" by including such venues, which are now exempt, in the requirement for background checks on all guns sold through licensed dealers.) But the Democratic consensus also reflects a larger shift in the party whose implications extend far beyond issues relating to guns.
Compared with the 1990s or even the early 2000s, House Democrats today are far less dependent on districts with large numbers of culturally conservative blue-collar and rural voters. Instead, the party's new majority is centered on urban and suburban districts that are either racially diverse, well educated, or both.
The willingness, even eagerness, of most House Democrats to embrace new gun control measures highlights how the party's evolution into a metropolitan-based coalition is shifting its incentives -- and reconfiguring its central fault line. For years, social and cultural issues -- ranging from abortion, gay rights and guns to questions of racial equity and immigration -- created the most difficult divisions for a Democratic House caucus trying to protect a large number of rural and Southern seats.
But those social issues are likely to prove much less divisive for today's metro-centered party.
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