"The President, his cronies and Republicans in Congress continue to wage their all-out assault on the Postal Service and its role in ensuring the integrity of the 2020 election."
Trump campaign spokesman Tim Murtaugh said the ad purchases could total more than $10 million and the expenditure will be at least in the high-seven figures.
"There is a significant risk that... ballots may be requested in a manner that is consistent with election rules and returned promptly, and yet not be returned in time to ...