Hillary Clinton

Democratic presidential candidate, Hillary Clinton speaks during a rally at Cuyahoga Community College Tuesday, March 8, 2016, in Cleveland.

(Tony Dejak, AP Photo)

COLUMBUS, Ohio--Hillary Clinton is the winner of Ohio's Democratic presidential primary, according to the Associated Press.

With 5 percent of precincts reporting, Clinton had 65 percent of the vote, while challenger Bernie Sanders had 33 percent, according to the Ohio secretary of state's office.

The win is a big moral victory for Clinton's campaign, coming on the heels of her surprise loss to Bernie Sanders in Michigan last week. The former U.S. secretary of state is also poised to rack up big wins in Florida and North Carolina, widening her delegate lead over Sanders.

However, despite the loss, Sanders may pick up a significant percentage of Ohio's 143 elected Democratic presidential delegates.

Both Clinton and Sanders only ramped up campaign operations in the Buckeye State a couple of weeks ago. But the two have strived to make up for lost time - Clinton alone made six campaign stops in Ohio during the past two weeks, and Bill and Chelsea Clinton also held events in the state on her behalf.

As of last week, the two campaigns had each reserved more than $800,000 worth of TV ads in Ohio.