Lankford wins Republican nomination outright in race for Oklahoma's open US Senate seat
US Sen. Thad Cochran defeats tea party-backed challenger in heated GOP runoff in Mississippi
Larry Hogan wins Republican primary to run for Maryland governor
State Sen. Brian Frosh wins Democratic nomination for Md. attorney general
Lt. Gov. Anthony Brown has won the Democratic primary for governor of Maryland.
Warren Buffett gives $100,000 to Nebraska Democratic candidate for governor
Md. teachers' union complains of campaign handouts replicating its apple design
Cardin, Frosh vie for Democratic voters' favor in 3-way primary race
US Senate candidates Mark Warner and Ed Gillespie to hold first debate in W.Va.
Md. voters head to polls to choose candidates for governor; errors resolved in Montgomery Co.
Group including Snowe calls for 1 primary day, other changes to end congressional gridlock
2012 GOP nominee Mitt Romney to endorse Scott Brown in New Hampshire's US Senate race
Mississippi voters choosing GOP nominee for Senate, capping contentious and expensive campaign
5 things to know about Maryland primaries
Tuesday is primary day in Maryland, and an election official has a few tips to make voting quick and easy.
Cochran, Rangel: Different styles and parties, but potentially same fate in tough primaries
Racial politics churn GOP Senate primary runoff in Miss. as Cochran seeks black support
Some try to make lieutenant governor job more attractive, but can't shake second banana image
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