On this trip, the president has been campaigning and raising money for Democratic Party candidates in Wisconsin, California, Washington state and Florida, as well as Ohio.

The entire House of Representatives, one-third of the Senate and many state governorships will be up for election in November.

After the back yard gathering, the president held a fund-raising event for Ohio's governor, where he criticized Republicans for their opposition to his economic initiatives.

"'No' on clean energy jobs, right here in Ohio and across the country. 'No' on making college more affordable. 'No' on Wall Street reform. Do you remember our slogan during the [2008 presidential] campaign? 'Yes, We Can.' This year, their slogan is 'No, We Can't,'" said President Obama

Republicans say Mr. Obama's policies involve too much government spending and will hurt the economy rather than helping it.

After his campaign swing, the president is scheduled to return to Washington briefly before he and his family start a 10-day vacation on the resort island of Martha's Vineyard, Massachusetts.