President Barack Obama’s approval ratings have dipped to their lowest level since January on deep economic worries, wiping out most of his lead in the White House race over Republican rival Mitt Romney, a Reuters/Ipsos poll showed on Tuesday.

The percentage of Americans who approve of Obama’s job performance dropped from 50 a month ago to 47, matching his mark in early January. The number who think the country is on the wrong track rose 6 percentage points in a month to 63 percent…

Obama’s approval ratings took their biggest dip among independent voters, who could be crucial to the ultimate outcome of the election in November. Approval for Obama among independents fell from 48 percent to 35 percent.

“Independents are especially susceptible to economic pressures, which is why we see them bouncing all over the place in their approval of the president,” Jackson said. “The finding that he is not doing that well with them this month is something for Obama to worry about.”