CHICAGO (WLS) — A new poll in the hotly contested U.S. Senate race shows that this contest for retiring Sen. Dick Durbin’s seat could be a very close one, with Congressman Raja Krishnamoorthi and Lt. Gov. Juliana Stratton neck-and-neck on the eve of the Democratic primary election.

“Well, I’m just very grateful to have the endorsement and support, personal endorsement of Reverend Jesse Jackson, and, of course, Yusuf Jackson. I was at operation Rainbow PUSH on Saturday, and some of the officials came up to me and said, ‘You know what? The reverend, before he passed, gave you his endorsement.’ And I was just thrilled to hear that,” Stratton said over the weekend.

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But it turns out that the endorsement Rev. Jesse Jackson reportedly gave to Stratton before he passed away, that she released over the weekend, was not actually an endorsement. Instead, it was part of a draft ballot, never intended for release.

Stratton said someone gave her an endorsement pamphlet, something that Jackson family members are now walking back.

The situation prompted Jackson family members to issue an apology. On Monday, the reverend’s son, Yusef Jackson, sent out a statement, saying that it was a draft sample ballot, released without authorization, adding, “It is important to note that the Jackson Family does not issue political endorsements, nor do Rainbow PUSH or the Rainbow PUSH Coalition.”

On Monday morning, Stratton greeted supporters outside of a polling place as she made her final push for votes with one day left until Election Day.

Rep. Robin Kelly greeted voters outside a Pilsen polling place, calling out Stratton for not better vetting the endorsement with the family before publicizing it on Saturday.

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“Mrs. Jackson did call me and apologize, and I told her she definitely didn’t have to apologize,” Kelly said. “You know, we lost Reverend Jackson, but they lost a dad, a husband, you know. So, I told her she didn’t have to do that. But she said, yes, she did, and that he would have never done that.”

Meanwhile, a new poll of likely Democratic primary voters shows this Senate race may be too close to call. Krishnamoorthi, with 31.6%, holds a two-point lead over Stratton, with 29.4%. That’s less than the margin of error. Kelly remains a distant third, with 13.6%.

“I think it’s going to be a close election, so I want all my folks, please, please come out and vote. I know it’s 20 degrees outside, but it’s 70 degrees inside, and you’re going to be voting inside, so come inside and vote,” Krishnamoorthi said. “I feel very good about my good friends in organized labor, like the Teamsters, who are doing incredible work, knocking on doors, making phone calls, sending text messages, asking people to vote.”

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“I’ve been running this campaign for 11 months, doing everything that I can to talk to voters, and as you know, we have the momentum right now, and the last three consecutive polls show that I’m in the lead,” Stratton said.

That’s according to Stratton’s own internal polls. Meanwhile, Kelly remains optimistic.

“All I’m going to say is that I’m getting in front of as many people as possible. I’m getting great response on the ground. I can’t tell you how many people have said to me, organizations, ‘We got you. We got you.’ So, we’ll see tomorrow, March 17,” Kelly said.

The candidates will be out campaigning again on Tuesday, leaving nothing to chance and hoping to connect with every voter possible, knowing that in a close race, every vote matters. The question is, will we have a winner on Tuesday night, or could it take another day or so?