Updated

Mitt Romney mounted a fresh attack on President Barack Obama's stewardship of the economy Wednesday, while a new Wall Street Journal/NBC News poll raised caution signs for Romney's strategy of putting the economy at the center of his campaign.

Partial results from the poll, released Wednesday, found voters feeling more positively about the economy and of Obama's handling of it. Some 30 percent believed the country was headed in the right direction, up eight percentage points from a month ago. Some 60 percent said the country was on the wrong track, down from 69 percent in December and from 74 percent in October. The question is considered an important measure of voters' mood.

For the first time in seven months, the poll found that more people approve of Obama's job performance than disapprove, 48 percent to 46 percent. Some 45 percent said they approve of his handling of the economy -- up six points from mid-December.

"Republicans had better bring their A game to the election in November, as today's results are a reminder that as attitudes about the economy improve, so does President Obama's standing," said Bill McInturff, a GOP pollster who conducts the Wall Street Journal survey with Democratic pollster Peter Hart.

Click here to read more on this story from The Wall Street Journal.