who are the republican candidates in maryland?
['Christopher M. Anderson, activist.', 'James C. Arnold.', "Ray Bly, Republican candidate for Maryland's 7th congressional district in 2016 and 2018, Republican candidate for Maryland's 2nd congressional district in 2012.", 'Brian L. ... ', 'Reba A. ... ', "Liz Matory, nominee for Maryland's 2nd congressional district in 2018.", 'William T.']