SOUTH BEND — The May 6 primary is less than two weeks away and it could make or break for Sen. Hillary Clinton in her bid for the White House. Thousands packed Coveleski Stadium Saturday to hear her.

Scott Kirner wanted his daughters to be part of history. But that's not the only reason he came to hear Clinton speak.

"I don't know. It's really difficult, that's why I'm here just to listen and learn,” said Scott Kirner.

Kirner is just one of many undecided voters.

"Actually I like both candidates. I like Obama and I like Hillary," said Johnnie Johnson.

And Clinton hoped to win over those voters Saturday.

"It is about working to make the changes we know we must have," Clinton told the crowd.

"And so the difficult thing for me is, the candidates are so similar on a lot of those issues," said Kirner.

And political science professor David Parker couldn't agree more. He says the only difference between the two candidates is their style.

"She says, 'Hey, I have all this experience and all this detailed policy knowledge and I'm ready to go on day one.' He says, 'Politics is broken, this system is broken, I'm a fresh face I can come in and bring people together,'" Parker said.

Parker says holding rallies is one way to show voters their style. Saturday's visit to The Cove was Clinton's third stop to the area in less than a month.

"I was thinking that we were in Mishawaka, some of you may have been there in the high school known as The Cave. Today we're in The Cove," said Clinton.

Parker thinks rallies like these do have an impact on people, especially undecided voters. He says not only does it show how they connect with voters, it also dominates the local media in a way that reinforces their advertising.

"So it's just kind of a bombardment. I'm getting all these leaflets in the mail. You're seeing the TV advertisements. And now we're seeing the local news. So yeah, I think they're very, very helpful," said Parker.

But for Kirner, Saturday's rally may have made it even more difficult to decide.

"Yeah, I'm still not sure," said Kirner.

Hillary Clinton will return to Indiana next week with stops in Kokomo and Terre Haute.