Senate Sergeant at Arms Terry Gainer will be leaving this spring, having served longer in that post than anyone since World War II.
Drew Willison, the current deputy sergeant at arms, will replace Gainer. He has spent most of the last seven years as Gainer's deputy and many years as a senior staffer on the Senate Appropriations Committee.
The announcement came Thursday from Senate Majority Leader Harry Reid, who noted that Gainer, 66, served as chief of the Capitol Police prior to becoming sergeant at arms in 2007.
An Illinois native, Gainer's career prior to Washington included an unsuccessful 1988 run as a Republican candidate for Cook County state's attorney. In all, he spent 47 years in law enforcement. Reid said he is leaving to spend time with his family and to pursue private-sector opportunities.
"Terry is one of the finest public servants I have ever met and I am grateful for all he has done for our community," Reid said in a statement.
The Reid announcement credited Gainer with dramatic improvements to the physical safety of the Capitol complex, providing vital emergency communications to the Senate community, improving Senate IT infrastructure, and launching new services for lawmakers, staffs, and constituents.
Michael Stenger will be appointed as the next deputy sergeant at arms. Stenger came to the Sergeant at Arms Office in 2011 after a 35-year career in the Secret Service, including a stint as assistant director, the No. 3 position in the organization.