It also announced penalties against three candidates who bet on their own races.
The disgraced former congressman took to social media on Thursday night, saying he "may be leaving the stage (for now), but trust me legends never truly exit."
George Santos insists he has "accepted full responsibility" for a series of fraudulent schemes despite a "social media blitz" by federal prosecutors suggesting otherwise.
Prosecutors opposed George Santos' attempt to delay his sentencing, arguing that the public has "a strong collective interest in the expeditious resolution of this case."
The New York Republican entered the plea in a courtroom in Long Island just weeks before his trial was set to begin in early September.
Ex-Congressman George Santos is expected to enter a guilty to plea in a hearing scheduled for August 19.