"The moment I answer that question, the headline in every one of your papers will be about that, other than focusing on what’s happening now," Biden said.
Following Supreme Court Justice Ruth Ginsburg's death on Sept. 18, some Democrats have pressed Biden to consider "packing the court" with liberal justices if Trump's Republican party fills Ginsburg's seat ahead of the election and creates a 6-3 conservative majority.
Trump has criticized Biden for repeatedly declining to provide his view on the matter.
On Thursday, Biden told reporters that revealing it now would distract voters from focusing on Trump's nomination of Amy Coney Barrett to the top court.
JOE BIDEN: They'll know my opinion on court packing when the election is over. Now, look. I know-- it's a great question. And y'all-- and I don't blame you for asking me. But you know, the moment I answer that question the headline in every one of your papers will be about that other than focusing on what's happening now.
The election has begun. There's never been a court appointment once an election begun. What? Four million or so people have already voted. They're denying the American people the one shot they have under constitutional law to be able to have their input.