The new Pew poll finds that Obama leads Mitt Romney among registered voters nationally by 50 to 43. But the more interesting finding may be that there’s been a big swing against Romney on the economy in particular:

The job situation remains the number-one issue for voters in this campaign. Neither candidate has a clear advantage on this issue: 46% say Romney and 42% say Obama can do a better job improving the job situation.

More generally, Mitt Romney has lost ground over the past month on the issue of the economy. The eight-point advantage he held in June as the candidate better able to improve the economy has now flipped, with 48% saying Obama can better improve economic conditions, while 42% favor Romney.