2024 election updates: How will Harris handle Biden's 'garbage' comment?

It's a state that could tip the result of the 2024 election.

And Trump is ramping up rhetoric sowing doubt on the state's voting process.

In a post on his social media site on Wednesday morning, Trump claimed there's "cheating" happening at "large scale levels." He did not elaborate or provide evidence for his claims.

Some isolated incidents have emerged, including approximately 2,500 potentially fraudulent voter registration applications being investigated in Lancaster County, though officials stressed the system worked and that voters can be confident in the election.

-ABC News' Soorin Kim and Olivia Rubin

Harris will take her closing argument to voters on the road after a big speech at the Ellipse in Washington on Tuesday night. She holds a 12:30 p.m. ET rally in North Carolina, a 4:35 ET event in Pennsylvania and a 9:30 p.m. ET rally in Wisconsin.

Trump will also be in North Carolina for a 1 p.m. ET rally before a 7 p.m. ET rally in Wisconsin.

Looming large over the campaign trail are President Joe Biden's comments from a Vote Latino campaign call Tuesday night. His wording angered Republicans, who saw him as referring to the supporters of Trump as "garbage." The White House and Biden himself, seeking to clarify the remark, argued he was referring to the racist rhetoric made by a speaker at Trump's Madison Square Garden rally on Sunday.