Former president campaigning in Ohio for Hillary Clinton

COLUMBUS, Ohio (AP) — Former President Bill Clinton is returning to Ohio for his wife’s presidential effort ahead of the March 15 Democratic primary.

Clinton’s campaign says he will be at her Columbus office around midday Wednesday and then head to Dayton for an evening fundraising event.

Hillary Clinton is trying to hold off Sen. Bernie Sanders after his upset victory Tuesday in neighboring Michigan.

She was in Cleveland on Tuesday evening, and said she was looking ahead to a “busy week” in Ohio. She defeated Barack Obama in the 2008 Ohio presidential primary.

A Quinnipiac (KWIHN’-ih-pee-ak) University poll released Wednesday indicated Clinton was favored by 52 percent of those surveyed, to 43 percent for Sanders and 5 percent undecided. The poll had a margin of error of plus or minus 4.3 percent.