Both Loughlin and Giannulli have pleaded not guilty and have vowed to fight the charges.
Lori Loughlin, the former "Fuller House" actress who is facing 45 years in prison for her role in the college admissions scandal, finds herself in hot water again this week after prosecutors accused her and her husband, Mossimo Giannulli, of withholding evidence from the government.
Federal prosecutors filed a joint interim report on January 10 calling on all of the parents to finally turn over their discovery evidence ahead of a conference hearing in Boston federal court Friday.
It's part of a larger battle over discovery.
The case against Loughlin and Giannulli has taken many twists and turns since the college admissions scandal broke in March. Get all the news you need in your inbox each morning. With the exception of Bill McGlashan and Robert Zangrillo, all the other parents have not provided any discovery to the government, according to the joint status report filed Friday. The government turned over its first batch of 3 million pages of evidence - emails, phone logs, bank records and other documents - to defense attorneys in April and May. "The Government's failure to disclose this information is unacceptable, and this Court should put a stop to it", the defendants argued in a court filing.
"The government disagrees with the accused's claim that it is premature to make their own discovery", the file said. While the government has honored its discovery obligations, "Defendants have not yet produced any discovery to the Government despite Government requests".
"It is not premature to provide the government with discoveries that it can later supplement as required", she added.
Prosecutors argue that, under federal court rules, the defense had 28 days to produce discovery following their clients' arraignments.
William Trach, an attorney for Loughlin and Giannulli, did not respond to a message seeking comment.
Singer has pleaded guilty to his role in the scam and cooperated with the government's investigation.
The couple is accused of paying $500,000 in bribe money to have their two daughters admitted to the University of Southern California as members of the crew team, even though neither girl had rowed before. A date is not set.
In a December article, CNN reported defense attorneys claimed Loughlin and Giannulli "didn't realize their money was being used to bribe Donna Heinel, a USC official, as federal prosecutors are claiming".
Loughlin and Giannulli have accused the federal government of hiding evidence that would help their defense case and, in a motion filed a year ago, defense attorneys argued that the couple did not know their money was being used to bribe the college.
Fifty-three people, including the 36 parents as well as college coaches, have been charged in the college admissions case. Thirty have either pleaded guilty or agreed to plead guilty later while the remaining 23 prepare for trial.