President Barack Obama and Republican nominee Mitt Romney remain engaged in a tight contest in Ohio, according to a CNN poll from that key battleground state released four days before the election.
With 50% support from likely voters, Obama narrowly outpaces Romney's 47% backing in the CNN/ORC International survey, which was conducted between Tuesday and Thursday. But that difference is within the poll's 3.5% sampling error. Ohio has 18 electoral votes.
Read more about the poll, and the race, on CNN's Political Ticker.