Rep. Roscoe G. Bartlett, Maryland Republican, has held his seat in Congress for 20 years, but Democratic challenger John Delaney is poised to oust him from office in the redrawn 6th Congressional District. (Barbara L. Salisbury/The Washington Times)

Rep. Roscoe G. Bartlett, Maryland Republican, has held his seat in Congress for 20 years, but Democratic challenger John Delaney is poised to oust him from office in the redrawn 6th Congressional District. (Barbara L. Salisbury/The Washington Times)