PROVIDENCE, R.I. (AP) — The brother of the mayor of the state's capital city pleaded guilty Friday to offering to set up drug deals so clients could get lighter sentences by alerting authorities.

The conviction of John M. Cicilline, a lawyer, comes as Mayor David Cicilline is raising money for a possible gubernatorial run in 2010. The mayor was at the federal courthouse in Boston on Friday to support his brother and other loved ones.

"It's obviously a difficult day for my family," the mayor said.

John Cicilline, 52, pleaded guilty to conspiracy, obstruction of justice and making false statements. He declined to comment after the hearing. He had pleaded not guilty in January 2007 but switched his plea ahead of his trial, which was to have begun Monday.

He could have faced up to 25 years in prison and $1 million in fines, but prosecutors will instead recommend a sentence of 18 months in prison.