A new CNN Poll of Polls on Monday showed that the race in Ohio is in essentially a dead heat.

The poll in Ohio, which is perhaps the most critical battle ground in this presidential election, showed President Barack Obama at 50 percent and Mitt Romney at 47 percent. These numbers released one day before the election are in an average of three Ohio polls of likely voters conducted last week, CNN reported.

Fighting for Ohio's 18 electoral votes, both presidential candidates have been parading in the state, especially since Ohio is considered a must-win for an overall victory on Tuesday.

On Monday, Obama, Romney and Rep. Paul Ryan all campaigned in the Buckeye State.

CNN also reported on the latest Ohio survey from the University of Cincinnati, which has the closest margin of the three polls. In a survey of 901 likely voters conducted by telephone, 50 percent of likely voters in the Ohio support Obama, while 49 percent support Romney.

This new Ohio poll comes a few days after the CNN/ORC International poll, which had the president at 50 percent and the former governor at 47 percent.

The poll conducted by the University of Cincinnati is the final survey of the cycle. The poll also released numbers on the tight U.S. Senate race in the state. Incumbent and democrat Senator Sherrod Brown leads with 51 percent while his competitor, Republican State Treasurer Josh Mandel, tails him with 47 percent.

As the final countdown of the race begins, ABC's Jonathan Karl made a few predictions about the close race. He believes Obama will be re-elected, the newly elected Senate will consist of 53 Democrats and 47 Republicans, and 240 Republicans and 195 Democrats will be in the House.

A presidential candidate needs 270 Electoral College votes in order to win the presidency.