(KNOXVILLE) With Super Tuesday around the corner, presidential candidates are spending money in Tennessee. All five Republican presidential contenders and Democrat Hillary Clinton will make campaign stops in the next few days before voters head to the primary.

To win the GOP nomination, a candidate needs 1,237 delegates, and half of those will be awarded on Super Tuesday. Tennessee has 58 delegates, the third most on Super Tuesday, behind Texas and Georgia.

Knoxville's television market is just now seeing ads for presidential candidates hitting the airwaves.

Political experts say they may be too late to make a big impact.

One ad features Gov. Bill Haslam endorsing Florida Sen. Marco Rubio. Donald Trump's features modern music with shots of the large crowds he's been able to draw. And Texas Sen. Ted Cruz has a simple close shot where he talks about the importance of fighting terrorism.

University of Tennessee political scientist Dr. Rich Pacelle said, in general, the last minute ads and endorsements will not affect the outcome.

"I think most voters have made up their minds," Pacelle said, "Roughly 10-15 percent of people don't make up their mind until the last minute."

Pacelle said key endorsements in the days before the South Carolina primary proved advantageous for Rubio.

"It didn't help him win but did boost his percentage by 4-5 points in the last few days," he said.

"And Donald Trump is doing very poorly with that (undecided) group."

Pacelle said he thinks Trump likely did well in early voting, which has now ended. Tennessee shattered records for people voting early this year with close to 400,000 casting a ballot.

But you won't see ads for dozens of names of delegates on the ballot. They will represent their candidate at the convention.

"It is unnecessarily confusing, I think, for voters," said Pacelle.

He added that a person's vote for a delegate does not affect who wins the nomination in Tennessee.

"It's more of an inside game of who gets to go to the convention. But the delegates are going to be allocated based on who you voted for the presidential candidate. So if you voted for Trump and then you went to the bottom of the ballot and voted for a few Bush delegates, it's still going to be allocated to Donald Trump," he explained.

For a delegate to attend the convention, their candidate must receive 20 percent of the vote. The delegates are allocated proportionally.

"At the end of the day if Trump gets 30 percent, Cruz and Rubio get about 25 percent each, they're all going to get some delegates," he said.

Visit the Tennessee Secretary of State's website to find your polling place.