WASHINGTON — 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.

The doubts about Obama’s leadership helped Romney pull to within 1 point of the Democratic president in the White House race — 45 percent to 44 percent — among registered voters with less than five months to go before the Nov. 6 election. Obama led by 7 points a month ago.

The poll was mostly taken after Obama suffered several recent campaign setbacks, including a weak jobs report in May and an optimistic comment on the good health of the private sector that critics say showed he was out of touch.

The gains for Romney also came as public concern deepened over the European debt crisis and a slowing recovery created a cloud of uncertainty about the economy.