Former football star and unsuccessful Republican senate candidate Herschel Walker is expected to speak at former President Donald Trump’s rally in Macon, Georgia, on Sunday night, sources tell ABC News.

During his senate candidacy, Walker was embroiled in controversy as he faced multiple allegations that he paid for women’s abortions in 1993 and 2009, despite holding an anti-abortion position.

Since his loss, Walker has retreated from the political spotlight, re-enrolling in the University of Georgia, but was recently seen hanging out with Trump when the former president attended the Alabama-Georgia football game in September.

-ABC News' Lalee Ibssa, Kelsey Walsh and Soo Rin Kim

In Milwaukee, Wisconsin, on Sunday, -- last day of early voting in the state -- former President Barack Obama continued to pitch Vice President Kamala Harris to undecided voters, while blasting former President Trump and addressing recent discourse about the Affordable Care Act.

"So in these last three days, I hope you are talking to people who are still undecided. I hope the conversation isn't just about policy," Obama implored the energetic crowd during his rally Sunday afternoon in Milwaukee, emphasizing the importance of values and a "moral compass" in this election.

"One of the most disturbing things about this election -- not just this election, but Trump's entire rise in politics, you can see it just pervading our political culture -- is how we seem to have just set aside those values that we were taught," Obama said.

Obama also jumped to defend the Affordable Care Act that was enacted during his presidency, also known as Obamacare, following recent suggestions that the Republican ticket would conduct "massive reform" of the healthcare act.

“If you ask Donald Trump what he's going to do to make healthcare more affordable, he's got one answer, and that is to repeal the Affordable Care Act," Obama said. "And he's not by himself. The other day, the Speaker of the House, the Republican Speaker of the House, Mike Johnson, said there would be 'no Obamacare,' if Trump wins."

Obama also continued to make jabs at Trump throughout his speech, saying he got rich because he was "given $400 million by his daddy," claiming he would call his chauffeur rather than changing his own tire, and mocking Trump's infamous "concepts of a plan" line.

-ABC News' Emily Chang

Robert F. Kennedy Jr. said Sunday that former President Donald Trump has “assured” him a job in the White House, though which position has not been determined.

Kennedy, speaking to Fox News’ Martha MacCallum, said the Trump team has been “very, very accommodating to give me what I want.”

Kennedy, a presidential candidate-turned-Trump surrogate, was responding to comments by Trump’s transition co-chair Howard Lutnick, who told CNN’s Kaitlan Collins last week that Kennedy would not be secretary of Health and Human Services.

“That is not true. The campaign has walked back those statements by Howard Lutnick, and he himself has disavowed those statements,” Kennedy said.

Asked by MacCallum if he could be selected to be head of HHS, Kennedy said, “We don’t know what I’m going to do.”

ABC News reported last week that Kennedy has floated to Trump the [names of several people](https://abcnews.go.com/Politics/video/rfk-jr-recommends-vaccine-skeptic-lead-hhs-115408893that he believes could lead the agency.

“I talked to the president yesterday and he asked me what I wanted, and I said we’re developing a proposal now," Kennedy said.

Kennedy added, "I want to be in the White House and he’s assured me that I’m going to have that. But I want to be in the position where I’m most effective to end the chronic disease epidemic and I’m confident that if I wanted to do HHS secretary, the president would fight like hell to make that happen.”

-ABC News' Will McDuffie

Harris stopped at a barber shop and a restaurant in Detroit on Sunday before heading to a rally in Lansing, Michigan.

She first went to Kuzzo’s Chicken and Waffles in Detroit’s Livernois district, a local restaurant owned by former Detroit Lions player Ron Bartell. Harris spoke to patrons and took selfies during the stop in which she was joined by Michigan Gov. Gretchen Whitmer, Lt. Gov. Garlin Gilchrist, and Detroit Mayor Mike Duggan.

Harris then went to Elam’s Barber & Beauty Shop, a Black-owned business in Pontiac, where she took part in a moderated conversation with local leaders and Black men from Pontiac and Detroit.

During the event, Harris asked the group, “How you guys doing? How’s your family?” Members of the group replied, “We’re alright now.”

-ABC News' Gabriella Abdul-Hakim