President Donald Trump took aim once again at former FBI director James Comey questioning why his former national security advisor was targeted by an investigation while Comey was not.

So General Michael Flynn’s life can be totally destroyed while Shadey James Comey can Leak and Lie and make lots of money from a third rate book (that should never have been written). Is that really the way life in America is supposed to work? I don’t think so! — Donald J. Trump (@realDonaldTrump) April 20, 2018

Trump has long taken issue with Comey’s self admitted leaking of personal memos detailing his conversations with the president. Comey leaked parts of these memos to The New York Times following his firing by Trump in order to try and spark the appointment of a special counsel.

Flynn has plead guilty to lying to the FBI regarding his conversations with the Russian ambassador while serving on Trump’s transition team before taking office.

Comey’s memos triggered deputy attorney general Rod Rosenstein to appoint special counsel Robert Mueller to investigate Russian interference in the 2016 presidential election. Comey defended the leaking to CNN’s Jake Tapper in a Thursday interview saying: