"I say to them, talk to President Trump. He's the one who is standing in the way of that."

Meadows argues the country will see a delay in results if states move to "universal mail-in ballots."

The biggest increases in July were in Florida.

"There are many issues that are still very much outstanding."

U.S. officials have said TikTok under its Chinese parent poses a national risk because of the personal data it handles.