A source close to Trump also indicated that the campaign and its allies are planning to specifically highlight certain choices she made as San Francisco district attorney in an attempt to portray her as lenient on violent criminals.

“So, while the public polls may change in the short run and she may consolidate a bit more of the Democrat base, Harris can’t change who she is or what she’ done,” Fabrizio wrote.

The leading pro-Trump super PAC, MAGA Inc., launched a new 30-second spot Sunday, first shared on social media, showcasing another plan of attack. The ad says Harris “covered up Joe Biden’s obvious mental decline” and features a clip of her praising Biden’s performance as president. “Our president is in good shape, in good health, tireless, vibrant, and I have no doubt about the strength of the work that we have done,” Harris says in the clip.

The group, which has already spent $77 million on ads boosting Trump so far, announced plans to air the ad in the key battleground states of Arizona, Georgia, Nevada and Pennsylvania.

Trump’s appearance in Charlotte will provide his first opportunity to contrast himself with Harris before voters in a battleground state. Four years ago, North Carolina produced Trump’s narrowest margin of statewide victory, and it was expected to be a top battleground again in 2024. But it was left off the list of states that the Biden campaign viewed as most winnable in a sobering post-debate assessment of the race.

CNN’s Kate Sullivan contributed to this report.