Old Line, New Bat­tles: Five things to watch in Mary­land pri­maries with con­trol of Con­gress on the line

Deep-blue Mary­land has been a strong­hold for Democ­rats in gen­er­al elec­tions for decades. But with a pop­u­lar for­mer Repub­li­can gov­er­nor run­ning for an open Sen­ate seat and eight House races, the Old Line State could spring a few sur­pris­es this Novem­ber. In this series, Old Line, New Bat­tles: Mary­land feels the pri­ma­ry pinch, the Wash­ing­ton Exam­in­er will look at the key fig­ures and impor­tant issues six months until Elec­tion Day. Part sev­en will focus on the most crit­i­cal Mary­land pri­ma­ry races to fol­low on Tues­day.
Mary­land vot­ers head to the polls Tues­day, where reg­is­tered Repub­li­cans and Democ­rats will make their choic­es in sev­er­al Ho …