“The Supreme Court decision on voting in Pennsylvania is a VERY dangerous one,” Trump tweeted on the eve of the election. “It will allow rampant and unchecked cheating and will undermine our entire systems of laws. It will also induce violence in the streets. Something must be done!”

The social media company responded by telling users in an alert that “Some or all of the content shared in this Tweet is disputed and might be misleading about an election or other civic process.” The disclaimer shared a link to a Twitter thread about the safety of mail-in voting.

Twitter also blocked users from liking or responding to Trump’s post. The company said it did so because it tries to “prevent a Tweet like this that otherwise breaks the Twitter rules from reaching more people.”

Trump’s tweet referenced a recent 4-to-4 decision by the U.S. Supreme Court to allow officials in Pennsylvania —a 2020 battleground state that could determine the outcome of the election—to count mail-in ballots received up to three days after Election Day.

The case reached the high court in October after state Republicans challenged a decision by the Pennsylvania Supreme Court that extended the deadline for receiving absentee ballots by three days, to November 6. Previously, ballots were required to be received by 8 p.m. on Election Day. The high court denied the GOP’s request to put a hold on a lower court order extending the deadline.

Later that month, the Pennsylvania Republicans renewed the challenge and asked the justices to resolve the matter on an expedited schedule. Last week, the Supreme Court refused once again to take up the matter.

More than 97 million Americans have already turned in ballots, according to data compiled by the U.S. Elections Project. The surge in early voting after most states expanded mail-in voting and in-person early voting in order to protect public health amid the coronavirus pandemic.

Trump has repeatedly railed against mail-in voting, despite casting his vote-by-mail in Florida back in August. The president has alleged, without any evidence, that the practice leads to increased fraud.

Trump told reporters on Sunday that his team would put up a legal fight over any ballots counted beyond November 3, specifically mentioning the state of Pennsylvania.

“We’re going to go in the night of, as soon as the election is over, we’re going in with our lawyers,” the president said.

A Twitter spokesperson said a warning was placed on Monday night’s tweet for “making a potentially misleading claim about an election. This action is in line with our Civic Integrity Policy, and as is standard with this warning, we will significantly restrict engagements on this Tweet.”

Newsweek reached out to the White House for comment but did not receive a response.