What to Know
Credibility of star witness Jeffrey Thompson faltered as prosecutors investigated allegations about his sexual relationships.
Washington Post filed suit for release of records from the investigation.
Gray's lawyer warned he would use Thompson's personal life if Gray went to trial, sources said.
The federal government wants six months of home confinement and a $10,000 fine for the man at the center of the 2010 D.C. mayoral shadow campaign.
Prosecutors agreed to drop one of the two conspiracy charges against Jeffrey Thompson.
The defense asked for two years probation and 1,200 hours of community service, citing Thompson's cooperation with the investigation and noting how he has lost his businesses and his standing in the community.
Prosecutors said they wouldn't use Thompson as a witness for the prosecution of former Mayor Vincent Gray because after Thompson pleaded guilty they uncovered evidence about his conduct that have been used to undermine his credibility.
Thompson is scheduled to be sentenced in August, according to court documents.
Gray's case was dropped in December. He won the Democratic primary for the Ward 7 seat on the D.C. Council in June.
Twelve people pleaded guilty to charges stemming from the investigation, which uncovered evidence of more than $3.3 million in illegal contributions to various campaigns between 2006 and 2011.
Thompson admitted setting up an illegal $660,000 slush fund that aided Gray's campaign.