CLEVELAND - Cuyahoga County Elections Board officials tested their vote counting systems on Friday as they prepare to count votes on election night that they know could be critical to who wins the presidency.
"We absolutely feel the effects of the high-stakes of this election," said director Jane Platten, "but when we do our jobs, we can't let that noise affect us."
The board's system tested well, and the county hasn't had any significant problems since switching its vote counting machines back in 2008.
Officials will start scanning early votes into the system on Saturday.
By law, those votes can't be counted until after the polls close on election day.
Platten expects almost half the expected 600,000 voters to cast their ballots by mail.
"So on election night," she said, "we should have 40 to 45 percent of the vote to report by 8 p.m."
Many experts predict that whichever candidate, President Barack Obama or former Governor Mitt Romney, wins Ohio will go on to win the election.
A New York Times article this week said when computer scientists ran 40,000 different voting scenarios nationwide, the candidate who was given Ohio won 95 percent of the time.