President Donald Trump says he opposes additional funds for the US Postal Service as it would boost mail-in voting he claims would help Democrats.
Mr Trump has previously claimed that mail-in voting would hurt his campaign, which polls show to be in a tight race with Democratic candidate Joe Biden.
Democrats denounced Mr Trump's comment, saying his position is an attempt to prevent Americans from voting him out.
A record number of people are expected to vote by mail due to the pandemic.
"Now, if we don't make a deal, that means they don't get the money. That means they can't have universal mail-in voting, they just can't have it."