Mikulski is a Maryland native who bas been in Congress since 1976 and a senator since 1987 . Democratic Reps. Chris Van Hollen of Maryland, Donna Edwards of North Carolina, Jim Moran of Virginia, Elijah Cummings of Maryland, John Yarmuth of Kentucky, Tim Ryan of Ohio, Steve Kagen of Wisconsin, Mike McIntyre of South Dakota, Joe Donnelly Martin O'Malley and Bob Ehrlich , could all run to replace her . Mikulski 's exit announcement came just weeks after a similar announcement from California Democratic Sen. Barbara Boxer .
Mikulski is a Maryland native who bas been in Congress since 1976 and a senator since 1987 . Democratic Reps. Chris Van Hollen and Donna Edwards , and former Govs . Martin O'Malley and Bob Ehrlich , could all run to replace her . Mikulski 's exit announcement came just weeks after a similar announcement from California Democratic Sen. Barbara Boxer .