At 2:24 p.m. on January 6, 2021, the United States Capitol was under siege.

Rioters were forcing their way through barricades, lawmakers were being rushed to safety and Vice President Mike Pence was inside the building overseeing the certification of an election Donald Trump refused to accept.

Then the president posted a message.

“Mike Pence didn’t have the courage to do what should have been done to protect our Country and our Constitution,” Trump wrote.

A federal judge has now acknowledged that the tweet “arguably poured gasoline on the fire.”

The question that could reshape the legal boundaries of presidential power is whether Trump must nevertheless remain protected from civil liability because the message counted as an official presidential act.

U.S. District Judge Amit Mehta declined Wednesday to reverse his earlier ruling that shielded the tweet under presidential immunity. But in a significant victory for the lawmakers suing Trump, Mehta allowed them to take that narrow legal issue immediately to the federal appeals court in Washington.

The decision places one of the most incendiary messages of Trump’s presidency directly before the U.S. Court of Appeals for the District of Columbia Circuit.

Plaintiffs have until August 5 to file their notice of appeal, with an opening brief due August 10.

At stake is far more than a single social-media post.

The appeals court may have to decide whether a president can transform conduct into an immune official act simply because government advisers spoke to him moments before he acted—even when the conduct appears political, personal or dangerously inflammatory.

The lawsuit was initially filed in February 2021 by Democratic Rep. Bennie Thompson of Mississippi. Thompson later withdrew to lead the House committee investigating January 6, and former California Rep. Barbara Lee became the lead plaintiff.

The complaint invokes the Ku Klux Klan Act of 1871, a Reconstruction-era law created to combat conspiracies designed to intimidate public officials and prevent them from carrying out their constitutional duties.

The plaintiffs accuse Trump of conspiring with former attorney Rudy Giuliani, the Proud Boys and the Oath Keepers to obstruct Congress as lawmakers certified Joe Biden’s 2020 victory.

Those allegations remain subject to the civil litigation.

But the latest dispute centers specifically on Trump’s attack against Pence as violence unfolded around the Capitol.

According to Mehta’s ruling, White House Chief of Staff Mark Meadows and White House Counsel Pat Cipollone entered the presidential dining room shortly before the tweet was posted. They reportedly urged Trump to intervene and stop the riot.

Trump refused.

Then he publicly condemned Pence.

For rioters already enraged over the vice president’s refusal to reject electoral votes, the message carried enormous weight. Video and testimony from that day documented chants targeting Pence as the mob moved through the Capitol.

Mehta did not minimize the danger of Trump’s words.

He wrote that the post may have intensified the attack.

Yet in March, the judge concluded that the tweet was protected because it followed conversations with senior White House advisers about the president’s official responsibilities during an unfolding national crisis.

That reasoning alarmed the plaintiffs.

In their request for reconsideration, they argued that Mehta’s approach could create an almost limitless immunity shield.

Under such a rule, they warned, virtually anything a president did after receiving advice from government officials could be labeled official—even behavior with no legitimate connection to presidential duties.

They offered deliberately absurd examples.

A president organizing a poker game could claim official status if advisers had previously counseled against it. Firing a campaign pollster could become an official act merely because White House employees had discussed the decision.

The plaintiffs’ central argument was simple: government advice cannot automatically transform a private or election-related act into official presidential conduct.

Mehta rejected their request to change his ruling.

But he also recognized that the legal question was unusually close and consequential.

By certifying it for interlocutory appeal, he allowed the D.C. Circuit to review the immunity issue before the broader lawsuit reaches a final conclusion.

That is a rare and important procedural step.

Normally, parties must wait until a case is completed before appealing most rulings. Interlocutory review is generally reserved for controlling legal questions where immediate appellate guidance could materially affect the litigation.

The appellate judges may now examine what Trump was doing when he attacked Pence.

Was he communicating as president about a constitutional proceeding?

Was he responding to advice concerning public safety and the operations of government?

Or was he acting as a defeated candidate, pressuring his vice president and encouraging supporters to disrupt the lawful transfer of power?

The answer could determine whether the lawsuit proceeds against him over the tweet.

It could also influence future cases involving the line between presidential conduct and campaign activity.

Presidents constantly operate in multiple roles.

They are heads of state, leaders of political parties, candidates for reelection and private citizens with personal interests. The Constitution protects legitimate presidential decision-making from many forms of legal interference.

But immunity cannot automatically cover every statement made from the White House or every action taken while holding office.

Otherwise, critics argue, the presidency could become a legal sanctuary for conduct undertaken to retain power.

Trump’s attorneys are likely to argue that responding to unrest, discussing congressional proceedings and communicating with the public are core presidential functions.

The plaintiffs will contend that the Pence tweet served Trump’s personal effort to overturn his election defeat and placed officials in greater danger rather than protecting the constitutional process.

Mehta’s language gives both sides something to use.

Trump can point to the judge’s continued finding that the message was an official act.

The plaintiffs can point to his acknowledgment that it may have “poured gasoline” on an already violent attack—and to his decision that the immunity question deserves immediate review.

More than five years after the Capitol riot, the legal consequences of that afternoon remain unresolved.

Trump’s tweet took seconds to publish.

Its effect may have been immediate.

But whether the Constitution protects him from accountability for it could now be decided by one of the nation’s most powerful appellate courts.

The central question is stark:

Can a president inflame a mob attacking Congress—and still claim that he was merely doing his job?