In May, DeFilippis led the prosecution of former Hillary Clinton campaign lawyer Michael Sussmann, whom a Washington, D.C., jury found not guilty this summer of lying to the FBI about the alleged Trump-Russia collusion.
DeFilippis was also a top prosecutor in the special counsel's case against former FBI lawyer Kevin Clinesmith, who pleaded guilty to doctoring an email that was used to justify a surveillance warrant targeting former Trump campaign adviser Carter Page.