MILWAUKEE (AP) — President Barack Obama's approval rating is 47 percent among registered Wisconsin voters. A Marquette University law school poll released Wednesday shows Obama's approval rating has improved some since January, when it was 44 percent. Forty-nine percent disapprove of the job he's doing, down 1 point from January. The results show Obama's favorability is rebounding some since the health care rollout last fall. Before that, 49 percent approved of Obama and 46 percent disapproved. The poll also shows greater support for health care reform. The poll says 39 percent of respondents have a favorable view of the overhaul and 50 percent have an unfavorable view. Eleven percent didn't know. The poll of 801 registered voters has a margin of error of plus or minus 3.5 percentage points.