Rick Gates, former campaign aide to U.S. President Donald Trump, departs federal court after being sentenced to 45 days in jail and three years probation, in Washington, DC, December 17, 2019.

Rick Gates, the former deputy campaign chairman and inaugural official for President Donald Trump, was sentenced Tuesday to 45 days in jail to be served intermittently and three years of probation, winning leniency for his "extraordinary" cooperation with federal prosecutors against other Trump associates.

"I accept complete responsibility for my actions that have led me here," Gates, 47, told Judge Amy Berman Jackson before she sentenced him in U.S. District Court in Washington, D.C., for conspiracy and making a false statement.

"I greatly regret the mistakes I've made, and I've worked hard to honor my commitment to make amends," Gates said, as he asked the judge for leniency. Gates will be allowed to serve his jail term on weekends or on a scheduled to be determined later.

At the same hearing, a prosecutor revealed that Gates' former business associate Paul Manafort — who had served as Trump's presidential campaign chief for several months in 2016 — had urged Gates not to plead guilty in the case by offering him access to funds for his defense.

"Mr. Gates received pressure from Mr. Manafort not to plead, and Mr. Manafort assured that there would be a defense fund if Mr. Gates decided not to plead," assistant U.S. Attorney Molly Gaston told Jackson.

Gates not only ended up pleading guilty after being charged along with the GOP lobbyist Manafort, he also testified against him at trial in 2018.

Gates' relatively light sentence for the charges was expected, despite federal sentencing guidelines suggesting a prison term of between 46 and 57 months for the longtime Republican consultant.

Prosecutors last week told Jackson in a court filing that they supported his request for only probation, given his "extraordinary assistance" to them.