Rod Blagojevich's former chief of staff will soon begin serving his 10-day sentence for helping the imprisoned former governor attempt to sell President Barack Obama's old Senate seat.
John Harris' attorney, Terry Ekl, says his client will enter the McHenry County Jail on Tuesday.
Harris' old boss got 14 years behind bars for his multiple corruption convictions. Blagojevich is serving his sentence in a federal prison near Denver.
Harris had faced a maximum five-year sentence for conspiracy to commit bribery. But in sentencing him in March, Judge James Zagel noted how Harris had agreed to cooperate with authorities almost immediately after his 2008 arrest.
That cooperation included testifying against Blagojevich.
At his sentencing, Harris apologized and said he should have done more to stop Blagojevich from pursuing illegal schemes.