What to Know
Democrat David Trone defeated Republican Amie Hoeber for Maryland's 6th Congressional District, the only open seat.
Rep. Andy Harris (R) beat challenger Jesse Colvin to keep Maryland's 1st Congressional District.
Harris is the only Republican representative in Maryland.
Democrat David Trone has been elected to an open U.S. House seat, edging out Republican candidate Amie Hoeber,
The liquor magnate defeated Hoeber on Tuesday to represent Maryland's 6th District that stretches from populous Montgomery County to the state's border with West Virginia. The congressional seat was open because three-term incumbent John Delaney, a Democrat, plans on running for president.
It was a high-stakes race for the wealthy Potomac businessman, co-founder of an alcohol retailer. Not only did Trone put more than $11 million into the effort but he underwent cancer surgery and chemotherapy during this year's campaign season.
Also winning was Andy Harris, a four-term Republican incumbent in a Maryland congressional district that leaned heavily conservative. Harris defeated Democratic challenger Jesse Colvin, a former U.S. Army Ranger.
See below for a list of all eight winners for Maryland's districts.
Winner: Republican — Rep. Andy Harris
Democrat — Jesse Colvin
Libertarian — Jenica Martin
Winner: Democratic — Dutch Ruppersberger, incumbent first elected to the seat in 2002
Republican — Liz Matory
Libertarian — Michael Carney
Green — Guy Mimoun
Winner: Democratic — John Sarbanes, incumbent first elected in 2006
Republican — Charles Anthony
Libertarian — David Lashar
Winner: Democratic — Anthony Brown, incumbent first elected to the seat in 2016
Republican — George McDermott
Libertarian — Dave Bishop
Winner: Democratic — Steny H. Hoyer, incumbent first elected in 1981; No. 2 Democrat in the House
Republican — William A. Devine, III
Libertarian — Jacob Pulcher
Green — Patrick J. Elder
Winner: Democrat — David Trone
Republican — Amie Hoeber
Libertarian — Kevin T. Caldwell
Green — George Gluck
Winner: Democratic — Elijah Cummings, incumbent first elected in 1996
Republican — Richmond Davis
Libertarian — David R. Griggs
Winner: Democratic — Jamie Raskin, incumbent first elected in 2016
Republican — John Walsh
Libertarian — Jasen Wunder