Veteran Democratic Sen. Ben Cardin faces a slew of challengers in his bid for reelection.
His opponents in the primary run the gamut from whistleblower Chelsea Manning — the former U.S. Army private convicted of leaking classified documents to WikiLeaks — to perennial candidate Lih Young, who has been in every primary since 2012 but has yet to secure a nomination.
In Maryland’s 6th District, eight Democrats and four Republicans are vying to win their party’s nomination for an open House seat.
On the Eastern Shore, Maryland’s lone Republican congressman faces two challengers from his own party, while a slew of Democrats are vying for a spot in the general election.
Overall, there are competitive primaries in all but one of Maryland’s eight congressional districts.
Here’s what you need to know about the U.S. Senate and House primary races:
Ben Cardin, incumbent
According to a February Goucher College poll, 61 percent of Democratic voters said they would vote for Cardin. Heavily favored, Cardin is a third-generation Marylander who has served in office for decades (he was elected to the Maryland House of Delegates in 1966).
Jetmir is a New York native and currently a Navy Chief Petty Officer in the Reserves.
According to the aforementioned Goucher College poll, 17 percent of Democratic voters said they would vote for Manning. Arguably the second best-known name on the ballot, she is a former U.S. Army private and was convicted of leaking classified information to WikiLeaks.
Marcia H. Morgan
Morgan’s website states: “Maryland needs a woman in the US Senate, and I’m THAT woman!”
Jerome Segal, political activist and philosopher
Segal is running against Cardin on a foreign affairs platform. He contends that Cardin is “a vehicle” of the American-Israel Public Affairs Committee.
Richard “Rikki” Vaughn
Vaughn was born and raised in Baltimore City and County. He parlayed an early career at McDonald’s into a business venture and brand.
Wilson is a former public school teacher and college professor. One of her stated goals is education reform.
Tony Campbell, political science professor
Campbell teaches politics at Towson University. He is also a former U.S. Army chaplain. His focus is on education reform, smaller government and national security.
Chaffee’s platform centers around Second Amendment rights, veterans rights, federal spending, small business, jobs and term limits. He also wants to defund Planned Parenthood.
Evan M. Cronhardt
Cronhardt is focused on American health care, tax equality, immigration reform, jobs, care for older Americans and welfare reform.
Nnabu Eze, Green Party nominee for MD-03 in 2016
Eze came to the United States from Nigeria at the age of 7. He is focused largely on term limits, veterans’ rights, immigration reform, taxes, social justice and health care.
John R. Graziani, candidate for the U.S. Senate in 2016 and candidate for MD-04 in 2014
Christina J. Grigorian, attorney
Grigorian is a Maryland native and graduate of the University of Maryland School of Law. Her platform focuses on public safety, transportation and education.
Brian Charles Vaeth
Vaeth is a former Baltimore City firefighter. His primary focus is on combating corruption. His platform also has an eye on gun rights, the budget, government reform, immigration reform, health care and public education.
In the 1st District, which encompasses Maryland’s Eastern Shore as well as parts of Baltimore and Harford Counties, Rep. Andy Harris, a former Maryland state senator elected to Congress in the 2010 Republican wave, is facing off against two challengers in the Republican primary.
On the Democratic side, six candidates are vying to take on Maryland’s sole Republican congressman in the general election.
Martin Elborn, a military veteran who founded the “Late Night Veterans Show”
In the 2nd District, which comprises parts of Howard, Harford, Baltimore, Anne Arundel and small parts of Baltimore City, incumbent Democratic Rep. Charles Albert “Dutch” Ruppersberger is running for reelection. He was first elected to the seat in 2002.
Ruppersberger, who was elected to the seat in 2002, faces a challenger in the Democratic primary. Four Republicans have lined up to challenge him.
Jake Pretot, a U.S. Army veteran and founder of a software development business.
In the 3rd District, which is made up of parts of Baltimore, Howard, Montgomery and Anne Arundel counties, incumbent Democratic Rep. John Sarbanes faces three Democratic challengers in the primary. Two Republicans are vying for their party’s nomination.
Adam DeMarco, U.S. Army veteran, West Point graduate and small business owner
Eduardo Rosas, U.S. Navy veteran, founded nonprofit organization LIFT A VET.
The district, which is made up of all of Garrett, Allegany and Washington counties as well as parts of Montgomery and Frederick counties, features the most crowded congressional primary in the state.
The seat is currently held by John Delaney, who announced last summer that he would step down at the end of his term to run for president.
The district’s contested boundaries were the subject of a Supreme Court case over accusations of gerrymandering by Democrats. After the lines were redrawn, Republican Rep. Roscoe Bartlett lost his seat in 2014.
Andrew Duck, U.S. Army veteran and director of operations for the small green energy company Avertica. Duck was the Democratic nominee for the 6th District in 2006 and 2010, before the district’s boundaries were redrawn.
In the 7th District, which includes most of Howard County and about half of Baltimore City, longtime seatholder Rep. Elijah Cummings is facing four challengers in his own party. Four Republicans are on the ballot in the GOP primary.
In the 8th District, which stretches from the D.C. suburbs of Montgomery and Prince George’s counties nearly to the Pennsylvania border, first-term congressman Jamie Raskin is running for reelection. Raskin faces two other Democrats in the primary. There are three Republicans running in the GOP primary.