Former U.S. Attorney Rachael Rollins, who resigned last year amid two damning federal probes for public corruption, had some choice yet cryptic words following the FBI arrest of Boston City Councilor Tania Fernandes Anderson on federal charges.

“There was a press conference for Gang Chen’s arrest & press release after his indictment. Complete arrogance & certainty about the arrests & prosecutions of Roger Boncy & Joseph Baptiste. Every single charge got dismissed. WCS, becomes a huge lobbyist like Finneran & DiMasi,” Rollins posted on her X account @DARollins about 5 minutes into the U.S. Attorney’s office’s press conference on the charges against Fernandes Anderson.

While Rollins doesn’t mention the city councilor by name, the subject of her sentiments can be inferred. It was her first X post since a Mother’s Day post last year two days before announcing her resignation.

The FBI arrested Fernandes Anderson, 45, at her Roxbury home Friday at around 6 a.m. on federal wire fraud and theft charges. Acting U.S. Attorney Joshua Levy, who was Rollins’ second-in-command during her brief stint at the office, held a press conference at 9:30 a.m. to give further details on the indictment issued that morning.

Rollins, who was confirmed as U.S. Attorney following a stint as Suffolk County district attorney that came with its own controversies, resigned her post on May 16, 2023, on the heels of two federal inquiries into ethics violations jumpstarted by a Herald report on a possible Hatch Act violation.

That ethical breach was in July 2022 when Rollins attended a Democratic National Committee fundraiser with First Lady Jill Biden in Andover.

A Herald reporter stationed outside the event asked if Rollins’ attendance would violate the Hatch Act — which is a policy guiding political activity by Justice Department employees to avoid conflicts of interest.

“No,” was Rollins’ one-word response.

Subsequent reports by The U.S. Department of Justice’s offices of Inspector General and the Office of Special Counsel found otherwise, and had a slew of other concerning conduct on the part of the top federal prosecutor in Massachusetts.

But what does the tweet mean?

Rollins seemed to be pointing toward high-profile federal cases that fizzled out, perhaps indicating her support for Fernandes Anderson’s innocence.

Gang Chen, the first name in Rollins’ obscure tweet, was an MIT professor who was charged in 2021 with doing work on behalf of the Chinese government and hiding it from authorities.

In January 2022, almost exactly a year after Chen’s arrest, Rollins’ office dropped the charges against the professor, saying that it “could no longer meet its burden of proof at trial.”

As for Roger Boncy and Joseph Baptiste, their case was a bit more complicated. The pair were originally convicted in federal court in Massachusetts but then they appealed and the feds had to show their hands and the case was ultimately dismissed.

The feds in 2018 indicted two men who were involved in an investment firm called Haiti Invest LLC: Maryland-based dentist Joseph Baptiste, a company board member, and Spain-based Roger Boncy, the CEO. Prosecutors say that the men solicited bribes from undercover agents posing as potential investors who posed a plan to develop a Haitian port area.

In exchange, Assistant Attorney General Brian Benczkowski said at the time, the indicted men “conspired to pay millions of dollars in bribes to Haitian officials to do business there.”

In 2019, a federal jury convicted both men, who then appealed. Baptiste argued that his trial attorney was so ineffective that it was as if he “had no lawyer at all.” Boncy’s said his attorneys had to work to cover for Baptiste’s lawyer and couldn’t pursue his preferred defense method.

The judge agreed, vacated the convictions and ordered a new trial. Prosecutors appealed but lost and a new trial date was set. Prosecutors then dropped the case.

Perhaps the easiest part of the tweet to parse is the reference to “Finneran & DiMasi.” Former Massachusetts House Speaker Thomas Finneran and his immediate successor Salvatore DiMasi, both Democrats, were both convicted on federal charges and then became powerful lobbyists.