CLEVELAND - First lady Michelle Obama is telling supporters across Ohio that they have power to determine who occupies the White House over the next four years.
Obama challenged backers at Cuyahoga Community College near downtown Cleveland on Monday to convince just a few more people to vote for her husband.
She says that his margin of victory in 2008 came down to just 24 voters per precinct in the battleground and that Obama supporters should keep that in the back of their minds when they're trying to get others to vote.
The first lady told audiences in Cleveland and in the central Ohio town of Delaware that she cast her absentee ballot Monday.
She urged them to do the same and spend Election Day getting others to the polls.
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A popular president can help his party's candidates for Congress and governor candidates in mid-term elections. But Democrats increasingly worry they could suffer losses, much as they did in 2010, Obama's first mid-term elections.
Republicans and Democrats in Ohio's capital city are launching a joint effort to explore landing a national political convention for Columbus in 2016.