Former prosecutor Shan Wu says Trump’s “big mouth” may have already poisoned his own case — turning his crusade against James Comey into a potential courtroom disaster.

Donald Trump’s relentless public attacks on former FBI Director James Comey may end up doing what Comey’s defense team alone could not — derailing the entire prosecution.

That’s the warning from former federal prosecutor Shan Wu, who told The Daily Beast Podcast that Trump’s repeated Truth Social posts demanding Comey’s indictment have likely undermined the government’s credibility and opened the door for the case to be thrown out.

“The main argument Comey’s people are probably going to make is selective prosecution — meaning he was targeted because he opposes Trump,” Wu explained. “And Trump has basically given them that argument on a silver platter.”

A President Who Won’t Stay Quiet

Comey, 64, faces a perjury indictment stemming from a 2016 leak to the Wall Street Journal, which prosecutors allege he falsely denied authorizing in a 2020 congressional deposition.

But legal experts say the case has been politically tainted from the start — and Trump’s own words may make that impossible to ignore.

The former president publicly pressured Attorney General Pam Bondi to prosecute Comey, calling him “a liar” and “a disgrace,” and bragging that his new U.S. attorney in Virginia, Lindsey Halligan, was finally doing what others “didn’t have the guts” to do.

That public pressure, Wu warned, could “hand Comey’s defense everything it needs to argue the case was politically motivated.”

Prosecutors Pushed Out — and Replaced by Trump Loyalists

The indictment itself is already mired in controversy. According to Wu’s reporting, Eastern District of Virginia Attorney Erik Siebert — originally overseeing the case — was pushed out after refusing to indict Comey, citing lack of evidence.

Trump then appointed Halligan, a 35-year-old former insurance lawyer and beauty pageant contestant with no experience in federal prosecution, to take over. Within weeks, Halligan secured an indictment — against the advice of senior attorneys still working on the case.

The White House insists the process was legitimate. “The indictment against Comey speaks for itself,” said spokesperson Abigail Jackson, claiming the administration is simply “restoring integrity” to the justice system.

But Wu and other legal scholars say the optics — and Trump’s own rhetoric — make that claim laughable.

A Case Built on Revenge

“Trump’s obsession with Comey has been public for years,” said retired federal judge John Jones. “He fired him on live television, he’s called him a traitor, and now he’s demanding prosecution. The president won’t shut up — and that’s admissible in court.”

Jones told CNN the comments strengthen Comey’s hand considerably. “It’s a better case for Comey,” he said. “He’s got a fighting chance on vindictive prosecution.”

Wu agrees. Even if Judge Michael Nachmanoff refuses to dismiss the case on selective prosecution grounds, Trump’s behavior could still torpedo it at trial.

“You can’t find a jury that hasn’t heard of this case — or of Trump,” Wu said. “And those remarks from the world’s biggest bully pulpit taint every potential juror.”

“He’s a Terrible Human Being” — and a Terrible Witness

Trump’s public statements — including calling Comey “a terrible human being” and suggesting he should “rot in prison” — are likely to become evidence for the defense, not the prosecution.

“The defense is going to argue that the president’s remarks show the case was prejudged,” Wu said. “That makes it impossible to get a fair trial anywhere on the planet.”

It’s a stunning reversal: the same mouth that helped propel Trump to power may now sink his own Justice Department’s case — a case he demanded for years as part of his vow to “get even” with his enemies.

A Political Trial, Not a Legal One

Even within Trump’s own administration, officials privately acknowledge that Comey’s prosecution is a political symbol more than a legal slam dunk.

For Trump, it’s a score to settle — the man who led the FBI’s Russia probe, who testified before Congress about his firing, who became a villain in Trump’s personal mythology.

But as Wu put it bluntly: “This isn’t about law. It’s about revenge. And revenge cases don’t survive real courts.”