Romney to campaign Tuesday

DULLES, Va. — Republican presidential candidate Mitt Romney is adding a day to his campaign, traveling to Cleveland and Pittsburgh on Election Day to hold events, his campaign said.

Romney has a rally in New Hampshire late tonight that had been billed as the closing event for the campaign, but the campaign announced Monday that he is adding events to "keep working until the polls close."

Ohio is a critical battleground for the presidential race, and Sunday, Romney made his first visit to Pennsylvania in weeks as recent polls have shown him within striking distance of President Obama there.

An Election Day campaign stop is not unprecedented. Both Barack Obama and John McCain added events on Election Day in 2008.