Updated at 12:08 p.m. ET
President Trump has mused about delaying this year's election based on unsupported conspiracy theorizing about the integrity of voting during the coronavirus disaster.
In a Twitter post on Thursday, Trump repeated what has become a pet theme about the prospect of inaccuracies or fraud with mail-in voting.
Many of the president's claims about voting by mail are not accurate.
Trump also does not have the power himself to move the date of the election, which was set by an 1845 federal law placing it the first Tuesday after the first Monday in November.
The date could move theoretically with action by Congress — but that would require agreement both by the Democrats who control the House and the Republicans who control the Senate. Neither side supports the idea.
Senate Majority Leader Mitch McConnell, R-Ky., reportedly agreed in an interview that the current date is "set in stone" on Thursday and top Democrats also rejected the idea of rescheduling.
"It's virtually inconceivable that the presidential election would be delayed," said Richard Pildes, a constitutional law professor at New York University.
Hogan Gidley, national press secretary for Trump's campaign, said in a statement later on Thursday morning that "the president is just raising a question about the chaos Democrats have created" with elections practices that Trump opposes.
House Judiciary Committee Chairman Jerry Nadler, D-N.Y., a frequent critic of the president, sought to reinforce that Trump does not have the ability to act on his own.
"Let's be clear: Trump does not have the ability to delay the election," he wrote on Twitter.
Rep. Zoe Lofgren, D-Calif., chairwoman of the House Administration Committee — which has jurisdiction over elections — called the proposal a nonstarter and observed that Americans have voted through many other times of crisis.
"Americans have voted during the Civil War, in the midst of the Great Depression, in the shadow of World Wars, and in the wake of terrorist attacks," she said in a statement. "Americans will stand united to vote this November."
Process uncertain for picking new date
Even if an election delay were agreeable to Congress, it's not clear when it would have to be rescheduled in order for Americans to "safely vote," as Trump says.
Delaying voting past December also would require a constitutional amendment adjusting the timelines for members of Congress and the new presidential administration to be sworn in.
"That's an enormously high bar and a lengthy process," Pildes said. "It certainly is unimaginable under the current circumstances."
Additionally, there is no nationwide turn to universal mail-in voting, and as much as half of the electorate is still expected to cast ballots in person. And while Trump draws a distinction between mail-in and absentee voting, there is essentially no difference.
Suggestion follows bad economic news
Trump's tweet came about 15 minutes after news of the worst-ever-recorded quarterly performance of the American economy.
Trump has trailed his Democratic rival, former Vice President Joe Biden, in recent polls and is seen as needing to make up ground against him in states considered key to this year's race, including Michigan and Pennsylvania.
Biden had speculated that Trump might raise the prospect of changing the date.
In late April, Biden told donors in a fundraiser: "Mark my words, I think [Trump] is going to try to kick back the election somehow, come up with some rationale why it can't be held."
At the time, Trump rejected that out of hand, saying a few days later: "I never even thought of changing the date of the election. Why would I do that? November 3rd. It's a good number. No, I look forward to that election."
With reporting by NPR White House reporter Ayesha Rascoe, congressional correspondent Susan Davis and voting reporter Miles Parks.
Copyright 2020 NPR. To see more, visit https://www.npr.org.