Which voters are causing the most trouble for Mitt Romney?
The new Wall Street Journal/NBC News poll, released Tuesday evening, shows Mr. Romney trailing President Barack Obama — perhaps dangerously so, given the shrinking pool of undecided voters. But it also points to ways that Mr. Romney could be winning, if only he could hold on to some big voting groups that have supported him more firmly in the past. [cont.]
Aaron Zitner, Wall Street Journal