President Donald Trump, who has long criticised Comey, said of the post that “a child knows what that meant”.
Comey was indicted by a federal grand jury in late September on charges that he lied to Congress during testimony in September 2020 and obstructed a congressional proceeding.
The indictment came days after Trump called on the country’s top law enforcement official to more aggressively investigate his political adversaries, including Comey.
Comey pleaded not guilty before the case was dismissed in November.
US District Judge Cameron Currie tossed the indictment against Comey because of prosecutor Lindsey Halligan’s “invalid” appointment as US attorney.
Halligan, the prosecutor in eastern Virginia who secured the indictments, was not authorised to present the charges to the grand jury, the judge said. Halligan is a former White House aide who had never prosecuted a case before.
The judge, however, left the door open for the government to try again.
Comey acknowledged that possibility after the ruling, saying he believes Trump “will probably come after me again.”
