With midterms hours away, how much should voters trust political polls?

Colorado College political science professor Bob Lovey has studied election polls for more than a half a century.

“Polling is a very inexact science,”Loevy said. “Polling organizations also poll for different things. Colleges and universities poll for issues about the election, news organizations just want to know the winner.”

Loevy believes most of the polls in the tightly contested battles for both a critical Senate seat and the governor’s race in Colorado are accurate.

If no candidate is more than four points ahead of the other, you can assume the race is a draw,” Loevy said.

The Denver Post published its final polls for the Senate and governor’s contest late last week.

GOP Congressman Cory Gardner has a slim lead over incumbent Democrat Mark Udall 46 percent to 44 percent. Gov. John Hickenlooper and Bob Beauprez are tied in their campaign with 46 percent each.

Lovey tells voters to not let the polls influence their vote.

“Don’t really count on them as to who is going to win on election night,” he said. “There have been to many times where the polls have been completely wrong, totally upset to place that much confidence in them.”

From all the polling data, Loevy expects Gardner will unseat Udall on Tuesday night. The political scientist said if Udall were to defy the late polls and survive, the freshman Democrat would pull of a major upset.