Here's why Comey will struggle to have case dismissed despite Trump's clear abuse of power

By Peter A. Joy, Professor of law, Washington University in St. Louis.

Soon after President Donald Trump demanded in a social media post that the Department of Justice prosecute his perceived enemy, former FBI director James Comey, Comey was indicted on Sept. 25, 2025, for lying to a Congressional committee in 2020.

Comey’s lawyers have responded, filing a motion on Oct. 20, 2025, to dismiss the charges against him with prejudice — the “prejudice” being legal jargon for barring a refiling of the charges. Comey’s lawyers allege that the Justice Department’s prosecution is both selective and vindictive.

Despite the existence of a long string of Trump attacks specifically urging that Comey be prosecuted, getting the case dismissed as a prosecution that is selective, vindictive or both will require Comey to overcome a very strong presumption that the charging decision was lawful.

Selective prosecution

For a court to find that there is a selective prosecution, Comey has two hurdles.

First, he has to demonstrate that he was singled out for prosecution for something others have done without being prosecuted.

Second, Comey will have to prove that the government discriminated against him for his constitutionally protected speech of criticizing Trump.

Clearing both of these hurdles seems unlikely. Others, including former Trump fixer Michael Cohen and former Reagan administration Defense Secretary Caspar Weinberger, have been prosecuted for the same type of crimes — allegedly making false statements to Congress or unlawfully seeking to influence or obstruct a Senate investigation.

Vindictive prosecution

Due to Trump’s repeated statements and social media posts that Comey should be charged, proving a vindictive prosecution may be easier.

Indeed, the motion to dismiss starts by laying out the argument for a vindictive prosecution, signaling that Comey’s lawyers think this is the stronger argument by leading with it.

Still, if Comey’s lawyers are to convince the judge, they will have to overcome a heavy burden that the prosecution has exceeded the broad discretion of the prosecutor.

The legal standard requires a court to first find that the prosecutor had animus, hostility, toward Comey, and second, that the charges would not have been brought if there was no animus.

The motion to dismiss based on vindictive prosecution makes a very strong showing of animus, relying on Trump’s several statements and social media posts that Comey should be prosecuted and that Comey was a “Dirty Cop” and “a total SLIMEBALL!”

Further evidence involves the fact that no other prosecutor other than Trump’s former personal lawyer, Lindsey Halligan, would seek charges against Comey.

Still, the grand jury found probable cause for the two charges against Comey and issued the indictment. The government will likely argue that demonstrates that the charges could have been brought even if there was animus.

Fallback position

Comey’s lawyers are leaning heavily on arguments for a dismissal of the charges with prejudice, but they also have a fallback position.

If the judge determines that they have not proved a selective or vindictive prosecution, they are asking for the opportunity to obtain discovery — the record — of the government’s decision to seek charges from the grand jury, and a hearing on their motion to dismiss the indictment.

Given Trump’s public statements and social media posts, and the legal authority on this issue, as a longtime practitioner and teacher of criminal law, I believe the judge is very likely to choose this course of action.

No matter how the trial judge rules on the motion to dismiss, the losing side is certain to appeal. No matter how the federal appeals court rules, the losing side is likely to seek Supreme Court review. Whether the court would take such a case is impossible to predict with any certainty.