Herschel Walker and Raphael Warnock are fighting for a Senate seat in Georgia's runoff on Tuesday.
Despite the tight race, Walker, the Republican nominee, has been keeping a light schedule.
GOP allies have privately said the chances of him winning are slim, Politico reported.
Georgia Republicans are losing faith in the Senate nominee Herschel Walker ahead of Tuesday's runoff election, Politico reported.
With control of the Senate no longer up for grabs, hopes are fading among Walker's GOP allies that enough voters will turn out to push him to victory, the report said.
Some Georgia Republicans have said privately that the chances of Walker, who was endorsed by former President Donald Trump, winning are slim, Politico reported.
He is facing the incumbent Democratic Sen. Raphael Warnock in the state's runoff election, triggered after neither candidate passed the required 50% threshold in the November midterms.
Republican Gov. Brian Kemp of Georgia, who got behind Walker early in the race, did not show up to any of his campaign events on the final weekend of the race, Politico reported.
Walker attended a rally in Loganville Sunday alongside Sens. Tim Scott of South Carolina and John Kennedy of Louisiana.
He also made an appearance Saturday at a tailgate at a University of Georgia football game in Atlanta, though he did not speak, Politico said.
The Georgia Republican Party also sent out an email describing Walker's Tuesday evening gathering as an "election night party," rather than a "victory celebration," the outlet added.
Politico said that detail was noticed by party activists and taken as an inadvertent sign of pessimism.
In an email sent to Insider, the Georgia Republican Party refuted Politico's reporting, saying the event was described as a victory celebration throughout their email, and that the only place it was referred to as an "election night party" was in the subject line due to space constraints.
Walker became a lightning rod for controversy as he campaigned.
He has been accused of hiding his "secret" children and forcing former girlfriends to have abortions. He has also made some unusual speeches, recently indulging in a long digression on werewolves and vampires at a campaign stop.
While Walker kept a light schedule over the weekend, Warnock attended six events in various cities, Politico reported.
Republicans have won the House, albeit narrowly, and Democrats will retain control of the Senate, no matter what happens in Georgia.
This story has been updated with a statement from the Georgia Republican Party.
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