Mark Kenneth Arness
MD-05 Democratic nominee?
$45.0K
JUN 24, 2026Primary Election
Party selects its nominee.
Overview
Current rolePhysician
PartyRepublican
GenderMale
LocationMaryland
BackgroundPhysician
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Notable personal detailsMark Kenneth Arness is a physician and military veteran who has been a candidate for the U.S. House of Representatives in Maryland’s 5th Congressional District. He previously ran for the same seat as a Republican (including in 2016), and his principal campaign committee was registered with the Federal Election Commission in 2014. Public reporting in 2016 described him as an M.D. living in Calvert County, Maryland, and noted he was married with two daughters.
SourcesShowHide
Positions
Healthcare
The candidate has advocated repealing the Affordable Care Act (Obamacare) and replacing it with an alternative national plan emphasizing portability and reduced government role. He has described the ACA as a failed insurance scheme and supported voting to revoke it.
Immigration & Border
Supports stronger border protection using surveillance technology, favors punishing illegal entry and discouraging policies that invite illegal immigration, while endorsing retention of productive immigrants. Statements emphasize enforcement and border security rather than pathways to legalization or expanded asylum access.
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Climate & Energy
Supports addressing climate change by advancing renewable energy technologies and improving energy efficiency; favors government support for wind and solar development when not yet economically feasible, while not calling for immediate phase-out of fossil fuels.
Public Safety & Guns
Emphasizes gun safety beginning at home and has been described in local sources as generally supportive of gun rights. Public filings list Mark Kenneth Arness as a candidate for MD-05, but his campaign materials and public statements show limited explicit policy detail beyond stressing safety and pro-Second Amendment leanings.
News
Mark Kenneth Arness is in the news because he is one of the candidates in Maryland’s 5th Congressional District race to replace retiring Rep. Steny Hoyer. The Democratic primary has drawn a very large field, with 24 Democrats and three Republicans in the contest. Recent coverage has focused on the primary itself and the issues shaping the race, but it does not provide specific new developments about Arness individually.
AP Decision Notes: What to expect in Maryland’s state primary
2026 voter guide: Maryland’s 5th Congressional District
Adrian Boafo wins Democratic nomination for Maryland's 5th congressional district, CBS News Projects
New updates coming soon
We're monitoring and will update when new data impacts the race.
- Polls
- Endorsements
- Fundraising