House Minority Whip Kathy Szeliga (R-Baltimore and Harford Counties) came in first with 36 percent of the vote. Chris Chaffee received 14 percent of the vote, while Kefalas garnered 10 percent.
Kefalas, who was former Gov. Bob Ehrlich’s legal counsel, came out as gay in 2011.
Congressman Chris Van Hollen defeated U.S. Rep. Donna Edwards (D-Md.) in the Democratic primary to succeed Mikulski.