Seems like they are concerned.
https://www.foxnews.com/politics/virginia-democrats-sue-usps-backlog-election-related-mail
https://www.foxnews.com/politics/virginia-democrats-sue-usps-backlog-election-related-mail
Quote:
"To preserve the integrity of the present election, USPS must be ordered to greatly expedite its processing and delivery of election-related mail particularly in Albemarle, Portsmouth and James City so that voters across the Commonwealth are not unconstitutionally denied their fundamental right to vote."