Romney Stirs up Challenge on Unions’ Own Turf

Mitt Romney has pushed the 2012 electoral battleground into union-friendly territory — putting organized labor on the defensive in states it typically has little trouble holding.

A recent demoralizing election loss in Wisconsin and simmering disappointment with President Obama poses further challenges for labor to rally its troops this election season.

Among the 10 or so swing states where the presumptive Republican presidential nominee is battling

President Obama, about half are populous, union-heavy states such as Pennsylvania, Michigan, Ohio and Wisconsin, where in most polls Mr. Obama holds precarious single-digits poll leads.

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