President Donald Trump has intensified support for Senator Darline Graham in the South Carolina Republican U.S. Senate runoff. On the eve of the election, Trump’s super PAC, MAGA Inc., allocated nearly $830,000 to boost Graham’s campaign, focusing on outreach such as text messages and phone calls to voters. Federal campaign finance records show these efforts total over $827,000.

Graham, endorsed by Trump, who is the sister of the deceased Senator Lindsey Graham, faces U.S. Representative Ralph Norman in a crucial GOP nomination contest scheduled for Tuesday. In a statement to reporters on Monday, Graham expressed optimism, saying, “It’s going to be close, but we feel good.”

The move by MAGA Inc. is noteworthy, considering the group’s general reluctance to support primary candidates this election cycle. This change is partly due to pressure from Senate Republican leaders, urging Trump’s team to back his endorsed candidates.

“It’s going to be close, but we feel good,” Graham said to reporters Monday.

Trump’s involvement included a rally for Graham in Myrtle Beach on Friday and a tele-rally on Monday. During these events, he described Graham as the “perfect person” to uphold her brother’s legacy, stating, “I asked her to do it. I got her into this whole thing.” He stressed the necessity of her election, saying, “I have to make sure she gets in because there will be nobody better.”

However, Graham recently came under criticism following her comment during an August 18 debate, where she admitted, “national security is not my thing.” This statement was in response to a question about U.S. interests in Taiwan and the South China Sea. Graham defended her position by comparing herself to Trump, noting in a Monday interview, “Just like President Trump on day one, I’m not a politician—and I’m proud of that.” Her remark was made during an appearance on Fox & Friends, where Trump called her response “honest.” He pointed out her focus on affordability, contrasting it with her brother’s foreign policy pursuits.

Patrick Casale, a senior adviser to Nevada GOP Chairman Michael McDonald and a Trump supporter, believes Trump’s backing of Graham is partly grounded in respect for his friendship with Lindsey Graham. Casale sees Graham as a potential “breath of fresh air” and anticipates her collaboration with Trump.

Casale also appreciates Graham’s debate statement, acknowledging foreign policy restrictions. He considers the race “interesting” and expects Graham to succeed in advancing to the November ballot. Nonetheless, he implies that a Norman victory would not significantly impact Trump’s standing, emphasizing Trump’s support for Graham due to Lindsey Graham.

“But on the surface, he supports her because of Lindsey Graham,” Casale said.

Trading predictions on Kalshi show Graham with a 67 percent chance of winning, while Norman has a 33 percent probability, as of Monday night.

The outcome of this runoff will test Trump’s endorsement strength against Norman, who made a significant campaign push on Monday with events concluding in Greenville. Although Greenville County typically casts most votes in state GOP primaries, it has a history of rejecting recent favorites. Norman has emphasized his pro-Trump record in Congress, contrasting Graham as inexperienced and supported by the “Washington elite.” The winner will face Democrat Annie Andrews in November’s general election, representing a potential historic shift as South Carolina Democrats have not won a statewide office since 2006.

Polls close at 7 p.m. ET Tuesday.

For inquiries, reach out to Newsweek editor Edward T. Cummins.