Between January and June, more Marylanders chose to register as independents than chose to be affiliated with either the Democratic or Republican parties. And Republicans outpaced Democrats in registration during the same period, according to the Maryland State Board of Elections. The board’s monthly activity reports show 14,668 more voters listed as unaffiliated since the first of the year, and 8,111 more Republicans. At the same time, the number of registered Democrats dropped by 21,259.