Kerry Johnson

A grand jury refused to indict Sean Charles Dunn on a felony charge.

Instead, prosecutors moved ahead with a less serious misdemeanor case.

The jury found Dunn not guilty of forcibly assaulting, resisting, or impeding the immigration agent.

Agent Gregory Larimore testified the sub exploded on his ballistic vest, and he smelled mustard and onion.

But defense lawyers say there was no injury, and Larimore kept gag gifs about the incident in his office.

Dunn was fired from the Justice Department after the sandwich video went viral.

He says he's relieved and wants to move forward with his life.

Carrie Johnson, NPR News, Washington.

The unusual group includes former attorneys general and their top deputies.

They're speaking with one voice to warn about the prosecution of former FBI director Jim Comey.

Their new friend of the court brief says that case appears to be motivated by President Trump's animosity and a dangerous exercise of the power to prosecute.

Comey's pleaded not guilty to charges of misleading Congress.

He's trying to get the case thrown out by arguing he's the target of a vindictive or selective prosecution.

Carrie Johnson, NPR News, Washington.

The former FBI director says the Constitution bars the government from carrying out a vindictive or selective prosecution.

But in new court papers, Jim Comey says that's exactly what happened when a prosecutor close to President Trump moved to indict him on charges of misleading and obstructing Congress.

Comey says the case is pure retaliation because he's a prominent critic of the president.

Trump has called the former head of the FBI a piece of garbage, a liar and a leaker and a weasel who should be in jail.

It's rare to get a case dismissed on the ground of vindictive prosecution, but Comey says at minimum the judge should let him explore evidence within the Justice Department about how he came to be charged with a crime.

Carrie Johnson, NPR News, Washington.